Television and Home Theater

Hello, I am an owner of a Mitsubushi WD52725 52" TV. It worked great for a while, but lately after the TV has been on and running for 10-15 minutes, the picture will scramble and after a minute turn off. The Geen light will then start flashing and the TV cannot be turned back on until it has been unplugged and then plugged back in. I feel like getting a repairman would be a complete waste if it has a fairly easy fix. On this website, I have heard that maybe the problem lies in the DM bored, so I attempted to disassemble the TV and take the DM board out.

I have a Toshiba TP55E80 projection tv. The left side of the screen will not align. When I use the grid, it just will not line up. The picture and text has a ghost effect. Any ideas on how to fix this. Are the guns the problem? I don't want to spend alot as the set is older, but the right side of the picture is fine. Thanks----Alan