Fuzzy Vertical Lines on monitor at high resolutions
 

I am running Slackware 10.0
As the title stated, there are Fuzzy Vertical Lines on the monitor at high resolutions (1280 x 1024). The Screen is still visable, but there are lines. This happens under KDE, Gnome, and any other X Window Manager.

1024 x 768 works just fine.
I configed my GPU and Monitor with "xorgconfig"

This is a problem with timing problem in xfree86 timings. Which version of XFree86 you are using. Also check /var/log/XFree86.log to see if your monitor is DDC capable.

I belive it's 3.30, but I'm running Xorg. Thats not the same right?