Can you take and upload a picture of this to www.imageshack.us and post the link here?
There are a few situations where I notice this "effect" occurring.
-When using the menu, selecting different items will stretch a "transparent" black bar across the screen
-When having the computer hooked up to the tv the same effect can be observed with window bars, etc
-If there is a large difference in contrast between two objects the darker object will "stretch" across the screen making the color distorted
What do you guys think?