I am wondering if I am one of the millions having this same Vista Problem.
I play on a dual core 2.6 Intel, with 3.2GB of ram ( 4 installed but vista only reads 3.2)
with a Nvidia 7600 (256mb) video card. I get the problem with new and previously loaded games. The whole screen will freeze, can't zoom or move, but the mouse works. Task manager says the application is not responding. But sometimes, after some time, maybe 5 - 10 minutes, I can zoom again and go to different screens, but I can't click on my ships to have them move anywhere.
I can create a dump file from the task manager screen if needed, but just wondering if I'm screwed until someone fixes this.