I have searched extensively and it does not appear that my model has an "Owners Thread". I apologize for any redundancy!
If I unplug the unit and power it on the picture comes on (optimal quality) for about 30 seconds and then it freezes. Sometimes it freezes at the same quality, sometime it freezes with distorted colors and flickering. The sound continues to work. After just powering the system down and restarting it, the picture is completely blank while the sound remains on. I can hear the channels change (DirectTV).
I just replaced the bulb and that did not remedy the problem. From my research, it appears that my next step may be the ballast or the color wheel (leaning towards the ballast). I'd appreciate any input!