LinuxQuestions.org - Video not working in 640x480

This is a problem I had

Quote:

I've got knoppix 4.something running of a LiveCD on my Sony Vio Laptop.

everything works great but 640x480 rez. When I try to set my screen rez down to 640x480 the picture gets all messed up.
Normaly this would not be a problem (why would I want to go down to 640x480?). But, when I try to play any games full screen (exp. Frozen-Bubble) the same thing happens. I'm guessing because they try to reset the screen rez to 640x480.

In windows I would guess that I have the wrong drivers installed. In Linux I have no clue what to do.

This problem was fixed when I upgraded to Knoppix 5.0. I was told the reason for this was

Quote:

Version 5.0.1 uses the X.org video and earlier versions used Xfree86. They handle video slightly differently, so that's probably made the difference for you

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Well I'm now having the same problem with My desktop running Slackware 10.2. I'm not sure off hand what the video card is (I believe it's a NVIDIA I bought a few years ago). and the monitor is a Sony 17" LCD. Let me know if I can change over to an X.org if that is the problem or any other settings that can be changed of what other info I can give you.

Thanks