And one can never have too many spare pcs around!
Yeah my family and room mates beg to differ. :)
Yet I love working on my old PC (which I just found out was rated the 8th worst PC ever made) because I need it to play my old games. DOS games don't work at all with XP/Vista and games circa 98 and back tend to crash a lot and play really buggy. And I don't like using emulators.
So good luck to Kev, sorry I have no advice to offer, as I've never had this problem.