I posted this on another forum where Brad saw it, but I wanted to see if others are encountering this as well:
GC2/DA have extreme performance problems for rotation and panning in Vista on my machine. When I hold down the middle mouse button, I have to move far to the edge of the screen to see any kind of response, and then it jumps very far in rotation. Simlarly, the map pans extremely sluggishly when moving the pointer to the sides of the screen. Rotating ships in the shipyards/intelligence report and moving the tech tree around all work great. Brad suggested this might be related to the poor Nvidia drivers in Vista on the other forum, but I'm not so sure since it's only affecting the one area. Any chance this could be a mouse driver type of issue? It's very frustrating as I don't want to keep rebooting into XP to play.

(Speaking of which, everything runs great at max settings in XP).
Anyone else run into this? Thanks!