Senior Paper Monitor

I have an HP Pavilion (just 4 months old) operating in the living room (where the cable/ADSL delivery point is) as a very lightly loaded server to a small (3 laptops) home office network (mixed wifi and LAN).

'Server' is an exaggeration of its actual role as the server functionality is limited to a couple of very small shared database applications (individual company mortgage and insurance application software), a platform for a couple of shared programmes such as Quark which we open/run from the workstations plus back-up duties.

I have not yet even loaded the planned SAGE accounting system.

It uses the PC as a monitor (the little it is needed) and I had thoughts of recording TV programmes on it (and DVD movies) but have not got round to it

With 3GB RAM and a reasonably high spec dual core Intel processor (can't find the spec at the moment) it should make easy work of this and until recently has.

However it was accidentally turned off at the power switch recently and ever since it was recovered (safe mode etc) it has been painfully slow and indicating 100% CPU usage constantly.

I have run Regtool, Defrag etc (a bloody slow process), used a goback/restore to a date before the 'switch off' and everything is indicating healthy but still running like a snail.

Any ideas ?