I've had a Sansui 42" Plasma for a about a month. I have loved this tv, but now for some reason it times out after 5-10 minutes and goes into standby. When I try to turn it back on, the power light will come on, but the screen will not. The only way I am able to recover is to pull power for 30+ secs and replug/turn on. This only works for about 10 minutes before it goes back into standby. I have tried with multiple inputs and I have the same problem. Please help.... thank you.