Its started happening 3 days ago, i have two windows 7 machines side by side and one does it and the other one doesn't. I have changed the theme, back and forth and no luck. I have never had this problem before lol and its really bugging me now. Windows 7 Pro
does it disappear, or stay there, once you have finished resizing? check the visual effects settings, which you will find under, advanced system settings/advanced/performance - settings
Once i have finished resizing it goes away, i have checked in the advanced settings and the only thing that would remotely seem obvious is the boarder padding, which doesn't change it. The thing is though I haven't changed any settings before it started happening. i checked my settings against another win 7 pro machine and there are exactly the same. Crazy, i am tempted to just reinstall Windows lol.
It looks similar to unticking XP's 'Show Window Contents while re-sizing' setting. Try the setting here: Control Panel -> System -> Adjust Appearance and Performance of Windows -> Show Window Contents while dragging. (and -> Animate Windows when minimizing and maximizing).
