GARDENER,
Also I have noticed on more that one occassion when I am in a program (going through files) and I switch the power on then up jumps the blue screen.
What power is he switching on? Not sure I follow.
Take care,
Richard
P.S. I think it could even be that the computer is infected with so much Malware that it locks up and BSODs. I believe this was the computer you mentioned some time ago as having problems?