I have an Asus G72GX with Windows 7. Lately, whenever I log onto Windows I get this small black box in the center of the screen. It only appears briefly then it disappears. It looks like the afterimage of an old program trying to run. It's not really a big deal, but it's kind of annoying. Is there any way to get the box to stop appearing?

Check your start up programs (Msconfig or CCleaner) as it sounds like a dos box running at log in.

It looks more like a black background image for an old program like gimp.