There is obviously a lot of DLP experience in the thread, so this is call for HELP! I love my LED backlit (no bulb) Samsung, but it has developed an odd problem: Losing all video and screen light shortly (20 seconds to 3 minutes) after a startup that briefly shows great images; audio and blue light remain; takes a long 15-40 seconds to respond to a simple ‘off’ remote signal. Happens every 8th, 10th startup, most noticeable in morning after long off period with only Dish receiver screensaver on one HDMI input.Remote LEDS shows signal received but slow response to source changes as well; no video on any source input.Power off with remotedoes not fix; remove/restore power (rebooting) no help until the off period is about 15 minutes. When it runs or after I unplug for 20 minutes and retry, it runs many hours without a problem.Seems a heat related issue perhaps in a section of the power supply that does not turn off with Remote off. Perhaps a low digital voltage that makes the processor see low or noisy power as input changes and the processor goes off into lala land (delaying priority interrupt that a Remote Off should generate).Any ideas/guesses?What section of the TV: power supply, LED backlight driver(s) or logic?I changed the TI ‘white dot’ chip long ago; picture still the best of any LED/LCD/Plasma when it is running, so I’m hoping you can say open it up, change out board XXX or Part YYYY and I can go back to enjoying the video. Thx in advance.