Hi there, Ive had to jump on a friends PC because mine is driving me mad. For some reason when I tried to switch it on this afternoon, after the XP blue box 'loading user settings' appeared another one appeared saying' logging off', it just keeps going round in a loop of logging on (but doesnt get to the point where icons or systems tray is displayed) and immediately logging out. I run Zone alarm, Avast and spyware terminator and have not knowingly changed any systems settings recently. I have tried starting in Safe mode but the same thing happens. HELP!