Thx for your suggestions.
The machine have been running W98 ok earlier. I have installed with only the display card in and still I get the same protection error when running W98 in normal mode. Also tried W2K and it stopped during installation process with BSOD and saying something about protection error before it went blue.
I think the problem must be related to:
a) the mother board
the CPU
or c) the memory
I'm not certain about the power supply, but since the machine is running ok in safe mode I assume it is ok.
Does anybody know of a DOS based testing program that is testing the processor with respect to mode since I get this protection error? "Checkit" is testing all components, but reports no error.
Ursula