Is this happening on all inputs (tuner, HDMI, etc) or just with the computer signal? It sounds like one of the CCFLs may need to be replaced - but that's just a hypothesis. An actual technician would probably be the best person to make that call.
Keep me posted.
I really do not know where to go or who to ask about my problem, but any input would be GREATLY appreciated. About a month ago my television (which i am using as a pc monitor) started going dim on the left side after being on for a few minutes. Its the side opposite the backlight inverter, i just wondered if this is potentially my problem, do i have a problem with my backlight inverter? The tv is fine when you first power it up, just dims on one side after its been on for a while, and stays dim on that side.