everytime i start mothership zeta i get abducted and i see the aliens. they put something in my body and then it kinda freezes. i can go to the pause menu and load a new save and i can go to the ps3 menu by pressing the ps button. the head of the alien in the back still moves but it doesnt proceed. i have this EVERY time i go in, and i eject the gamedisc and start it again and then it works. any thoughts why this happens?