HELP!!! The screen on my iMac G4 17" (1.25 GHz) got cracked right in the middle, just below the center. There is a black streak which has grown out to the left side and is now spreading up across the top. Ideally, I would like to replace the 17" display with a 20" display (I'm familiar enough with being inside the iMac to be comfortable doing this), but the question is: Is this "do-able"? Are there other issues that would need to be addressed? I'veheard that the weight of the displays are balanced in the neck, so a 20" display will weigh down if replaced on the neck of a 17" iMac... But how about other issues? Anybody out there wanna help?