HI again: just though I would leave an update. After much searching, I found, on "austech" forums, a PS Module modification which could be done to solve the problem. It was a little too "tecchie" for me in terms of tools and know-how, so I took the machine to a local electronics repair shop to implement the mod. He discovered no problems with the PS module's power, and suggested that it could be a lamp problem, since lamps, as they age, draw more power to maintain brightness and the PS unit might be unable to support the extra draw (he had worked on projector TVs with the same issue and a new lamp had solved the problems with those). My lamp had just under 1800 hrs on it. I ordered a new one from a company which allows unconditional returns for a $25.00 restocking fee and switched out the lamps. It worked!! I have now put just over 12 hours on the new lamp with no problems whatsoever (other than a burned plastic smell which seems to be the new lamp housing getting used to the high temperatures - researched this too, it is no problem and the smell will apparently go away soon - it is already diminishing). My recommendation: don't junk your panny if it is switching on and off as described earlier in these posts. Try to find a lamp retailer with a good return policy and try switching out the lamps. I will give an update if something changes with my projector.