Hmm, another very useful thread. It prompted me to have a look at my BIOS, which I'm generally a bit nervous about looking at too closely. I'm using an AOpen MX3W motherboard with a Celeron Coppermine 600MHz processor. I wondered if the CPU speed was set rather low at 66.8 x 3.5, so I upped the multiplier to 8 (max) to bring the result to 566, which I think works with having an FSB of 100MHz. My system seems perfectly happy so far, in fact I'd almost swear it was running cooler, but I've not checked. I don't think the increase in speed of the delivery of graphics to the screen is my imagination. Sorry, that's a bit of a fluffy explanation. If I'm obviously heading for trouble here, I'd appreciate the warning. In any case thanks for the discussion. From here, I think with a faster Hard Drive and some more memory I'm going to feel like I've got a whole new machine! Thanks again. tim hall
