Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a 4 months old PC with Windows 7 Home Premium x64.

  • Windows Experience Index is 5.4.
  • Intel i5 processor
  • 6GB memory
  • nVidia GT220 video card.

During games, Windows reported shortage of system resources, so switched the desktop back to "Windows 7 Basic" desktop theme. After game-over, I could switch back to the normal theme and enjoy all Aero eye-candies. However, lately the glass-like window transparency feature got disabled, and I found no ways to enable it again.

There is a Troubleshouting option in Control Panel saying: "Find and fix problems with transparency and other visual effects". If I launch that, it does not find anything.

Event viewer is full with the following warnings:

 The Desktop Window Manager is experiencing heavy resource contention. 
 Scenario   :   The Desktop Window Manager responsiveness has degraded.

Taskbar, window borders, etc, none of the other transparent features work, and I cannot turn them on. Any thoughts?

share|improve this question

That's a tough one, but here's a few ideas:

  • Try re-running the Windows Experience Indexer.
  • Try using MSConfig to disable all non-essential programs (to see if one of them is causing the problem).
  • Try using System Restore to go back to a point when it WAS working right.
  • Try updating (or reinstalling) your video drivers to the latest version.
  • Try a new video card and/or RAM (by this point I'd take it back to where you got it and get them to figure it out, as most 4 month-old PCs are still under warranty, and they should have extra hardware to test with).
share|improve this answer
up vote 1 down vote accepted

I found the source of the error: QuickTime Launcher (on the system tray). As soon as I kill the process, transparency comes back. Steve Jobs was right: Adobe is lazy.

share|improve this answer
?? Steve Jobs makes QuickTime - not Adobe - or was that sarcasm? – Antony Mar 19 '10 at 2:27

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.