Well I am in the midst of replacing the internal HD in my iMac DV SE with a 60 GB HD that I keep in an external enclosure. All I need to do now is just get the internal one out, and it's being held in by 4 measley screws. Problem is, they won't budge! I'm apprehensive about putting any penetrating liquids in it, simply because I've seen less liquid do more damage. Do you all have any tips on removing these 4 troublesome screws?