Windows – Tooltips shadow stuck on desktop

windows 7

I tends to get this problem from time to time. The tooltips with a shadow appearing on top of everything. It's the shadow of the tooltips not disappearing after the tooltips disappear. The last one I had the tooltips was from the wifi connection list at the systray.

This problem also happen to me on another computer. Both running Win7 with ATI gpu.

I found this similar post Menu command stuck on screen but none of the solution helped. In fact the "Fade or slide tooltips into view" has been unchecked from the beginning.

Ending task of "dwm.exe" also doesn't help. So far the only way to resolve this by restarting window.

I can't post picture yet, so can't show any screenshot.

Edit: Just tested a few more trick which doesn't work.

  1. Turn of aero
  2. Hibernate
  3. Switch main display to external display and switch back.
  4. Change resolution

Edit(heavyd):
Here is a screenshot from my machine.
Shadow

Best Answer

First a remark : Instead of restarting Windows, one can just restart Explorer. In the Task Manager, kill explorer.exe, then restart it using the menu entry File / New task.

A sure way to solve the problem is to simply disable shadows on tooltips :

  1. Start Control Panel -> Ease of Access Center, or just press Windows logo key+U.
  2. Under "Explore all settings", click "Make the computer easier to see".
  3. Under "Make things on the screen easier to see", click "Fine tune display effects".
  4. Click the "Effects" button.
  5. In Effects, uncheck "Show shadows under menus".
  6. OK all the way out.
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