There were a lot of freezes in my games. I could solve most of them trading with another race and try again (moving chains). After I've turned off "follow auto ships" most of the freezes are gone. Until now - nothing seems to work. If I close the game and restart it sometimes it runs one or two ship steps further and then freezes at another job again. Here's my debug.err: 
Debug Message:  Version v1.4x last updated on: Mon Oct 23 17:43:56 2006
Debug Message:  GalCiv2 is activated.
Debug Message:  Checking DX Version.
Debug Message:  *********DXDiag info follows.*********
System Info
Time: 12/26/2006, 10:41:54
DirectX Version: DirectX 10
Machine Name: DADDY
Operating System: Windows Vista™ Ultimate (6.0, Build 5600) (5600.vista_rc1.060829-2230)
Languages: German (Regional Setting: German)
System Manufacturer: GBT___
System Model: AWRDACPI
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Pentium(R) 4 CPU (2 CPUs), ~3.0GHz
Physical Memory: 2046MB RAM
Page File: 740MB used, 3577MB available
Windows Dir: H:\Windows
Display Info
Display device 1:
Device Name: \\.\DISPLAY1
Card Name: NVIDIA GeForce 6600 GT (Microsoft Corporation - WDDM) 
Manufacturer: NVIDIA
Chip Type: GeForce 6600 GT
DAC Type: Integrated RAMDAC
Key Device: Enum\PCI\VEN_10DE&DEV_00F1&SUBSYS_2011107D&REV_A2
Display Memory: 128 MB
Current Display Mode: 1280 x 1024 (32 bit) (60Hz)
Monitor Name: PnP-Monitor (Standard)
Monitor Max Resolution: 
Driver Name: nvd3dum.dll,nvapi.dll
Driver Version: 7.15.0010.9746
Driver Date: 12/8/2006 04:25:00
DirectX Acceleration Enabled: Yes 
Sound info
Sound device 1:
Description: Lautsprecher (Creative SB Audigy 2 ZS (WDM))
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: PCI\VEN_1102&DEV_0004&SUBSYS_20021102&REV_04
Manufacturer ID: 1
Product ID: 100
Driver Name: {0.0.0.00000000}.{d99833c5-a163-4a8e-a167-55e21b51f50e}
Provider: Creative
Driver Version: 
Driver Date: 
Type: WDM
Other Drivers: 
Acceleration Level: 1
Cap Flags: 0
Min/Max Sample Rate: 0, 0 
Sound device 1:
Description: SPDIF Out (Creative SB Audigy 2 ZS (WDM))
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: PCI\VEN_1102&DEV_0004&SUBSYS_20021102&REV_04
Manufacturer ID: 1
Product ID: 100
Driver Name: {0.0.0.00000000}.{c8d2a9a6-d5c5-4cbd-98fc-aacd0f6cb617}
Provider: Creative
Driver Version: 
Driver Date: 
Type: WDM
Other Drivers: 
Acceleration Level: 1
Cap Flags: 0
Min/Max Sample Rate: 0, 0 
Debug Message:  *********END dxdiag info.*********
Debug Message:  Entering WinMain
Debug Message:  ******* Starting Game Shell *******
Debug Message:  Going Fullscreen
Debug Message:  Preparing to change display settings.
Debug Message:  Using multilsample setting: D3DMULTISAMPLE_4_SAMPLES
Debug Message:  Game Resolution: 1280 x 1024
Debug Message:  Running fullscreen.
Debug Message:  HAL (hw vp): NVIDIA GeForce 6600 GT (Microsoft Corporation - WDDM) 
Debug Message:  D3DPRESENT_INTERVAL_DEFAULT
Debug Message:  Refresh rate: 60
Debug Message:  Bit Depth: 32 bit.
Debug Message:  *********Checking D3DDevice Caps***********************
Debug Message:  A full-color cursor is supported in hardware at high resolution modes.
Debug Message:  RGB in format 6:6:6, Masks reported as ff0000:ff00:ff
Debug Message:  Now Fullscreen
Debug Message:  Shell initialization complete
Debug Message:  ***** Initializing Game *****
Debug Message:  Timer Frequency is 0 369e99
Debug Message:  Initializing sound card.
Debug Message:  initailizing bink
Debug Message:  Create setup screens.
Debug Message:  Clear galaxy settings.
Debug Message:  Clear influence.
Debug Message:  Clear up laws.
Debug Message:  Clear first time events.
Debug Message:  Clear wonders and trade goods.
Debug Message:  Clear sector mapper.
Debug Message:  Set mouse.
Debug Message:  Set update timer.
Debug Message:  Clear data definitions.
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\ships\*.xml
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\ships\*.shipcfg
Debug Message:  Reading Star Names
Debug Message:  Reading Star Names... Done
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\Dread Lords Campaign\*.sav
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\Logos\*.sav
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\Metaverse\*.sav
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\Portraits\*.sav
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\ships\*.sav
Debug Message:  No files found matching mask H:\Users\Harald\Documents\My Games\GalCiv2\temp\*.sav
Debug Message:  Killing threads.
Debug Message:  Kiling civs.
Debug Message:  Killing ships.
Debug Message:  Killing rallypoints.
Debug Message:  Killing misc objects.
Debug Message:  Killing stars.
Debug Message:  Killing anomalies.
Debug Message:  Killing space resources.
Debug Message:  Killing colonies and planets.
Debug Message:  killing scenario.
Debug Message:  Clearing Turn Event Log
Debug Message:  Clear galaxy settings.
Debug Message:  Clear influence.
Debug Message:  Clear up laws.
Debug Message:  Clear first time events.
Debug Message:  Clear wonders and trade goods.
Debug Message:  Clear sector mapper.
Debug Message:  Loading Custom Map
Debug Message:  Loading Data Defs
Debug Message:  Clear data definitions.
Debug Message:  Loading TechDefs
Debug Message:  Max num techs: 248
Debug Message:  Loading ImprovementDB
Debug Message:  Loading Component Defs
Debug Message:  Loading ShipTypes
Debug Message:  Loading ShipConfigs
Debug Message:  Loading AnomalyTypes
Debug Message:  Loading RandomEvents
Debug Message:  Loading UPIssues
Debug Message:  Loading ResourceTypes
Debug Message:  Loading InvasionTactics
Debug Message:  Loading SBmodules
Debug Message:  Loading PoliticalParties
Debug Message:  Loading Planet Types
Debug Message:  Loading Star Types
Debug Message:  Loading Game
Debug Message:  Loading: Game mode is normal.
Debug Message:  Loading Galaxy
Debug Message:  Sectors across: 18 x 18
Debug Message:  Loading FOW Map
Debug Message:  Loading ZOC Map
Debug Message:  Loading Planets
Debug Message:  Loading Stars
Debug Message:  Loading Anomalies
Debug Message:  Loading Resources
Debug Message:  Loading Civs
Debug Message:  Loading Colonies
Debug Message:  Loading RallyPoints
Debug Message:  Loading Ships
Debug Message:  Loading Fleets
Debug Message:  Loading Turn Event Log
Debug Message:  Loading ENDGALAXYDATA
Debug Message:  Updating ZOC.
Debug Message:  UIBeginGame called with g_ulLocalPlayerID = 10
Debug Message:  UIBeginGameHelper: New Game Started
Debug Message:  UIBeginGameHelper: Mods are Disabled
Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
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Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  Error flipping back buffer to primary buffer.
Debug Message:  n/a
Debug Message:  WM_CLOSE message received.
Debug Message:  GameUninitialize start
Debug Message:  Killing Galaxy
Debug Message:  Killing threads.
Debug Message:  Kiling civs.
Debug Message:  Killing ships.
Debug Message:  Killing rallypoints.
Debug Message:  Killing misc objects.
Debug Message:  Killing stars.
Debug Message:  Killing anomalies.
Debug Message:  Killing space resources.
Debug Message:  Killing colonies and planets.
Debug Message:  killing scenario.
Debug Message:  Clearing Turn Event Log
Debug Message:  Clear galaxy settings.
Debug Message:  Clear influence.
Debug Message:  Clear up laws.
Debug Message:  Clear first time events.
Debug Message:  Clear wonders and trade goods.
Debug Message:  Clear sector mapper.
Debug Message:  Clear data definitions.
Debug Message:  Killing Galaxy: Completed
Debug Message:  Shutting down sound system.
Debug Message:  Clearing sound and music handles.
Debug Message:  WorkAreaBack.png not cleared 1 counts left.
Debug Message:  GameUninitialize end
Debug Message:  Device not cleared. 2 counts left.
Debug Message:  D3D not cleared. 1 counts left.
Debug Message:  Destroying Window.
Debug Message:  Main Shell terminating normally
