Thanks Wolfman for replying to this thread.
You have almost the same system as I am, therefore I think it will help more to find out what the problem is. May be you can help us out if you don't mind.
At the moment. this is my conclusion, I don't know if it is right. Fish has a better motherboard than mine K7S5A. so its not the motherboard.
its not the graphics card because I swapped for another one before.
I have the same Redhat 8.0, 4349 driver and GF2 mx with more RAM as you. Motherboard and CPU are different. Motherboard was ruled out. so I guess
the driver and athlonxp 1800+ combination not working properly.
Nvidia please look at this thread to fix this problem.