Windows 7 - Screen size for windows limited, smaller than desktop

Hoi,

I experience a serious reoccurring issue with Windows 7 window management. It happens 1 in 5 times when logging in after locking the screen (or putting the machine to standby).

Windows are restricted to a part of the whole desktop. Please note that the explorer window in the attached picture is maximized, but not occupying the whole desktop as expected! (In fact I can move windows to the right side, but not maximize to it. Also when moving windows there, it snaps *not* to the edge of the screen but to to the same wrong line where the edge of the maximized window is.)

What is this? What causes this? How can I disable this? Only restart helps by now...

Thanks for any response.

Hello Sibidiba.

I have the exact same problem. VERY frustrating. Have you had any luck finding a resolution to the issue?

BTW, while not a fix, you don't need to reboot, but only have to logout then re-login. Should be a bit quicker.

It amazes me that this isn't well documented with a fix somewhere. I just keep finding responses about adjusting your screen size resolution, or updating drivers, etc.

If I find a fix I'd be happy to let you know, but if you come across one, please let me know as well.

No luck here either. I had it especially often when changing screen size/output device/suspend more frequently.
I also couldn't find much helpful references...