Do you have Aero enabled?Quote from LOgg:
I also want to mention that my current vid card, showing on the monitor) is experiencing intermittent ghost-pixel like symptoms. The "waves" come in vertical patterns and are blue. If i move a folder or web page or these waves then they turn yellow. Most people say it is the vid card since this happens on both monitors...
Aero is visual candy enabled by default in Vista and Windows 7 (not applicable if you use Windows XP). Aero enables for semi-transparent windows etc. Read more here. If you use Aero it puts a heavy workload on the graphics card with higher screen resolutions. The "wave" effect you observe is likely how your graphics card repaints the screeen in real time.Quote from LOgg:
I'm not sure what Aero is?