On my quest on opening the imac, i left the imac on for a little while i took the glass panel off. Once I took the glass panel off...TRADA!!! no more backlight bleeding!!! i found out that the foam around the edge of the lcd in the places where it is unusually bright, the foam is sticking out, and the glass, pushes it in, somehow, allowing more light to escape, causing backlight bleeding, i will play around with this more later and see if i can stop it on mine without doing anything queer. just by pushing the foam and testing. I need time to do because i need to settle the dust in my room to make it safe so that dust doesnt get inside, i need to close the air conditioning vent and stuff things under the door. it was quite a journey, but I think its a start.