When moving the sliders from the forms, the screen becomes a big mess That also happens in gnome after the install. I've got a good working Diamond Stealth III S450 a friend of my has got the same error with the same video card. I hope you can understand my message, my English is not verry well as you can see ;)
Passed to QA to reproduce this problem.
hmmm ... this sounds like an X problem (since gnome post-install also displays these problems!) ... reassigning bug to X component ... thanks for your report!
assigning to correct person
Please attach your X server logs, and your XFree86 config file using the file attachment link below and I will look into this problem.
I can't look into this without the information I requested.
Closing - no useful information supplied.