Richard
It's a single CPU system, the two temps I quoted were CPU and motherboard. The room is normally fine but during the warm spell we had I bought a fan to follow me around the house.
I'll upgarde the drivers as soon as I can and see if that helps.
Lost Luggage
That is a useful power supply calculator, (thanks Richard) it suggests a power supply in the region of 355W. So it's a close shave.
During the disk scan it froze.
Unfortunately I don't have any hard drive diagnostic software if anyone could suggest some I would be grateful
TCS
I've not added any hardware for quite some time now. The only software upgrades I have performed is the virus checker, that could be a possiblility. Unfortunately I have never managed to get a system restore to work, it nearly completes then proceeds to tell me it failed. I'll see if I can get to before the virus update.
In the main I've been quite happy with ME, not really wanted to bother with XP.
Thanks to all so far, all suggestions are very welcome,
I'm in the process of gleaning off all important data.