Screws in LCD Assembly

Hello all,

I have exhausted the forums and google search, but can't seem to find an answer. It has been three days, and I would like to get my iphone assembled.

There are four screws in the lcd assembly which will not turn. The screwdriver just refuses to turn them. It is the same screwdriver I have used to repair three other iphone screens. Nothing.

What I have tried:

1. Superglue(head to driver for torque)2. Pushing from the back of the screw3. Another Screwdriver4. Applying great force to try and turn the screw

Please help before I wear down the screwheads to nothing! I'm about to give up...

Pictures(of screwheads)

http://imgur.com/SePKW

http://imgur.com/kiRHF

http://imgur.com/fWygr