xp crashing & restarting

[Guest shaun]

hi all been having issues with my computer.after logging in comp would shut

down and restart.went into safe mode, start up folder and narrowed it down to

amd-dc-opt (amd dual core optomizer)which i disabled.things seem fine for now

but how did this problem occur it had me quite worried and how can i fix the

problem as disabelling it does not seem to be a fix.any help

appreciated.thanks in advance.