Monitor displays garbage

[lchalupa]

Booted up my machine today and when I started x windows, the first dialog box came up fine and then the gui components turn into garbage characters and I then I lose control of the gui and have to reboot.

I'm running Centos 5.5.

I'm wondering how to diagnose this. Is this a hardware problem of a configuration
problem?

Is there a way I can set the video settings back to default values?

How should I proceed?

Thanks

Lee

[Rubberman]

Root Cause Analysis:

1. What has changed since it last worked OK?
2. If nothing has changed (hardware, software, configuration, system updates), then it must be a hardware problem.
3. If something has changed, what happens when you roll back the changes?

Effectively, the information you provide is not sufficient to help you determine the cause of this problem, nor how to resolve it.