Hi Lee

I don't think it's the card...

The computer was working fine for a few years...with another card...and
then developed had that problem all of a sudden. I went out a purchased
a new card just to see if that was the problem but it didn't help. So
with or without the new card, the problem is still there.

The MB is an ASUS A7V133...

I guess my next step is to get a hold of another PSU. I've been using
the same PSU for about two years and never had any problems - so I
don't think it's that either. Besides, all i have connected right now
are the MB, CPU, 2 HD's, 1 Vid card, and that's it...so don't think the
load is excessive.

Thanks though...I'll try what you suggested to do in the BIOS.