I downloaded windows v.1.7 of limewire and as i was installing teh program my computer made glitches on teh screen and then froze. I has to shut it down improperly and then as i was starting it up i received an error messase saying i had to remove a system disk and press any key. Well what teh hell is a system disk and now my computer is not opening. I fear i lost all of my work. Please respond ASAP!!!!!