Hey Everyone, Got a REV A 12" Powerbook, about 5 months old. Does anyone have a problem with their hinges? When I have my lid open, if i push the screen back (particularly after it has been sitting in the same position for a while) it makes a VERY loud cracking sound and is almost too stiff to move. Closing the lid is ok tho! Really pissing me off, but won't get a chance to get it looked at for quite some time Anyone else experienced this? Apple's response?