Ubuntu 8.04 crashes - locks up my pc
I've just installed Ubuntu 8.04 - my first time with Linux.
Everything seemed to be going fine until the system suddenly crashed. This happens EVERY time I boot into Ubuntu - after anything up to 20 minutes use, apparently at random. This seems to shut down my graphics card:- the monitor goes blank and displays "no signal - going to sleep". I thought this might be a screen saver issue at first, but nothing will wake the system up again, not even Control-Alt-Del. (I have since disabled the screen saver and it still happens)
The only way out of this is the PC reset button.
Is this the Linux equivalent of Windows' infamous blue screen? I hoped Linux was going to be better...
:(
Any clues on this ?
If not, I need to know how to get my PC to boot into Win XP again as the default OS...
My system details:
Abit KV7 with AMD Sempron 3300+ and 2Gb RAM
ATI RADEON 9200 128Mb AGP
Ubuntu is installed on its own 80Gb HDD
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