Television and Home Theater

So I'm having a problem with the green on my projection TV. The red and the blue are totally fine. The green is OFTEN fine and working perfectly for random periods of time after the TV is turned on, but whether it's 5 minutes or 5 hours, the green will eventually warp (and it always warps exactly the same amount). I've read some other posts on this site concerning convergence problems with this TV, but none of them mentioned that their TV often works correctly, which makes me think I might have a lesser problem. Possibly I have a loose connection?

Ok I have been searching for answers on what might be causing the bowtie effect on the rear projector, I just replaced the IC's and still same issue, I checked the IC board for the resistors and they all seem to be fine. could it be the lenses? Also the screen whent bad out of no were, it was not dropped moved ect...

Is there something I am missing?