Television and Home Theater

I can not get my Mitsubishi 55613 to recoginize my computer.  My computer recognizes the TV as a monitor but the TV is not recoginizing the computer.  I have added COMPUTER in the device setup menu, and I am using the VGA monitor connection.  I perform a FUNCTION F7 on my computer and it changes to the correct screen, however the TV does not change.  Any advice?

I had the dreaded blinking green light problem, replaced the caps on the DM board, problem went away.  Now a few months later I have a new problem:

 After about 30 seconds of the TV being turned on, I get these horizontal grey bars scrolling vertically through the picture that scrolls both up and down, speeding up and slowing down.   This is on the DVI input.  When I switch to component, the screen is "jagged" where the picture is unviewable, again scrolling up/down at various speeds.

It looks like I am joining the "Mitsubishi party" with everyone else with this "blinking green light of death" problem. I have a model WD-62825. I have read many of the replies about changing outs some caps, but when I try to fine an article on "how to" I can't seem to locate it.

If some one can send me the information or the link I would appreciate it
regards