I'm running XP Pro SP2 on an AMD X2 4200+ system with a 7800GT and the latest drivers and DirectX.
The initial release had problems with the little 'mini windows' of animated planets and ships that would rotate spinning out of control. Well, the latest version not only does that, but now, dragging and moving around the main galaxy map jitters all around too.
For example, when I start a new game, and I'm selecting the race, the little window in the lower right corner that shows the ships has a 3D ship that's spazzing out all over (rotating uncontrolably). This seems to take place with every 3D "rotated" system in the game.
Note I am running in windowed mode 1280x1024x32.