Aero peek on Windows 7/64Bit sometimes not working

[kochujang]

Hello,

I have a peculiar problem with aero peek. It sometimes just decides not to work anymore, and only shows labels instead of a preview. This is only temporary, because when I switch between other windows, the aero peek is activated again. I actually reproduced this behavior by switching to this post, and writing for 1-2 minutes. Hovering now only produced labels/tooltips. By switching to another window, aero was "activated" again.

I have tried the "Find and fix problems with transparency and other visual effects", but Windows couldn't find any problems

 

[Dom]

Welcome to Sevenforums
Something may be corrupted - try out this tutorial:
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

 

[kochujang]

Thanks for your welcome!

The scan didn't find any integrity violations, which should be expected since the laptop is brand new. So, what could it be?