Thanks tirjasdyn :-) I chequed it and it works okay. I had a virus a while ago(well not me , my computer:-))and I suspect it damaged some files that cause the the computer to shut down sometimes. It usually happens when I have some program on for a longer time and dont work on it but just keep it resident. Then when I shut that program down, the whole computer shuts down. But thanks for the advice!!! And every month I burn a cd with all my latest stuff , just to make sure I keep al my stuff :-))