Originally Posted by cardinals_fan
A big update: this issue is not specific to the Linux drivers! The latest 175.19 drivers for Windows XP also produce the 1-pixel line of doom.
I've been having this problem on my Vista Home Premium (32-bit, running on an HP Pav1610n: AMD 64x2) as well. Specifically, my monitor (IBM 9494) works fine at startup, but I reproducibly get the single-line-at-the-top after waking from Sleep.
But only in the last couple weeks or so -- since Windows Update gave me a 6150LE driver update. Didn't have any trouble before that. Currently I'm running driver 175.19.
I'm going to try roll back the driver and see if that cures the problem.