My mouse pointer is getting large and blocky (like if the resolution had suddenly decrease but only for the mouse pointer) quite randomly while using it. When playing games this happen every time I stop and go back to the desktop (Fallout 3 and Blood Bowl). Once this happen changing the resolution makes not difference, changing the mouse pointer type makes no difference and only restarting will get everything back to normal.
I use Win 7 home premium 64bit, a P55 Gigabit with an i7 860 and a ATI 5850 graphics card with the latest catalyst drivers on it. I use the standard aero set-up for Win7.
Windows 7 and fallout 3 are having issues with API. I think it's Fallout 3 trying to use Dx 9 or Dx 10 API and windows 7 not letting it. There isn't much you can do about this. I also run Fallout 3 on Windows 7 however my resolution is never changed on my desktop. It could be a problem with your video card's drivers. I recommend uninstalling/reinstalling.
Great, now if only I could sort out my itouch sinc in Win 7 and my Canon MP640 printer also struggling with the USB I will be OK. I starting to get the feeling I should have waited a bit to buy my set-up.