Bloody Microsoft updates!
Allowed them all to run the other night.....there were a lot of them......(XP, SP3, on spare desktop, kept for when this one dies)
Following morning, blue screen of death! .......Which hung around for long enough to tell me it was dead, and then went black.
The "recovery disk" wot I made a couple of years ago doesn't seem to fix it, from start up from disk, so question of getting local pc man to try to fix it, or give up as bloody Gates shower wont support XP for much longer.
Huh!!