hi my computer is broken. it is very slow to start up. try at least 8 hours to start up. i recently changed the dvd drive and when i turned the comp on again, it started up fine, but after about 1 min it freezes and i have to wait overnight for it to work again.is there any way to fix this or do i have to reset windows?? i dont have a os reinstalation disc either but when i first set up the computer it told me to make a cc of all the settings, instalations, etc. i still have these discs btw its an acer program that prompted me to do this back up thing. help plz thx