The problem occurs outside the game, as well, often when previewing a window from the taskbar, but not only. I notice it when I'm move the mouse pointer and then it stops, only to suddenly move to where it should be once the mouse stopped. And it's only on that one single machine, I haven't encountered the issue on any of the dozens of machines I've installed Windows 7 on (almost all have been 64-bit pro), or on the other machine I had running E&B. But for all it's worth, the issue no longer matters as I have a different machine now and I'm mostly done transferring data. The new machine doesn't experience this problem. I think it is probably some piece of bloatware from the manufacturer that wasn't removed or was removed but had some remnant left over. It's getting wiped clean tomorrow. There were a few other games that were affected by this, but they didn't minimize, they only froze up for a couple seconds. Whatever it was also screwed with audio as music would get momentarily severely distorted during these instances when I'd be listening to tunes in WMP or Winamp.