My computer automatically highlights the last choice on any drop down menu including the lowermost icon on the desktop,Dvds cutomatically skip forward by 5 seconds, moving the cursor casues erratic flicker of the highlight bar over the options on any drop down menus, I have run most of the antivirus programmes available including Norton and McAfee but no virus were detected I have formatted the Hard drive, reinstalled OS (windows XP Pro) but the problem remains. What could it possibly be? any help is welcome
