Like the title says, Particle Forge (the latest version) doesn't run, but it used to. For some reason, it just stopped working. I tried to open it, but it doesn't start. I'm running the Windows 7 RC, have .Net 3.5 (and the 4.0 beta). Galaxy Forge works fine, and I've had no problems with it. Downloading Particle Forge again and running that doesn't work either. If I run one Particle Forge process, it appears on the taskbar, but no window opens. If I try to run a second one, a visible error pops just saying, "Particle Forge.exe has stopped working." Details as follows.

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    ParticleForge.exe
  Application Version:    1.0.3345.32477
  Application Timestamp:    49a89b3b
  Fault Module Name:    StackHash_0a9e
  Fault Module Version:    0.0.0.0
  Fault Module Timestamp:    00000000
  Exception Code:    c0000005
  Exception Offset:    0cc800cb
  OS Version:    6.1.7100.2.0.0.256.1
  Locale ID:    1033
  Additional Information 1:    0a9e
  Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:    0a9e
  Additional Information 4:    0a9e372d3b4ad19135b953a78882e789

Can anyone help with this?