i have a dell 1526 vista laptop and over the past days i was having a screen problem with it so i thought maybe itd be the cmos battery.. on the other hand i have an other xp desktop so i took its cmos battery out and put it into the laptop.. i see it wasnt the battery problem so i took it out and replaced it back to the original cmos battery to my xp.. now my desktop doenst work.. it actually works but screen doesnt come up and the fans dont stop running and i cant turn it off... what did I do and what do i do?