I have used Excel heavily for over 10 years. About a half year ago I started seeing weirdness when I drag my column scroll bar back and forth quickly. The Row Numbers from the left side of the screen get dropped in various places as the screen. They are "artifacts" which means they are not really there. They go away when I page down, then back up.
I can't duplicated it on other computers, only on my lenovo t500. I suspect a hardware problem because the artifacts did not go away when I upgraded from office 2003 to office 2010.
I can repeat it easily by rapidly swinging the scroll hand, but in normal use it only happens once or twice a week. Its weird, but doesn't really bother me, so I am not going to try SFC /scannow or any other time consuming cleanups.
Nonetheless, I wonder if anybody else has ever seen this particular artifact, and if so, did you ever figure out what was going on?