[dg5150]

I also had this problem last year. I purchased a "compatible" bulb from a website for far less than the Sony branded bulb, the sales person told me they were identical. They were not. Then I purchased a "Sony" bulb from an authorized Sony dealer on eBay, and had no problem. I could tell a difference in the casing right away after I got the new Sony bulb. I don't know if the different casing had something to do with the way the bulb fit in the TV, but it definately fit tighter - the generic bulb did not fit as tight. Compatible bulb started flickering immediately - not one flicker from the Sony bulb 8 months later. If you look around on eBay, you can still find a good deal on the Sony bulbs - I think mine was only $25 more than the generic. Absolutely worth it. By the way, the power saving did no good on the generic bulb, it still flickered whether the setting was on or off. But no problem with the Sony bulb with either setting. Hopefully (and probably) that's what the problem is. Stay away from the generic bulbs. Even if you have to eat a restocking fee on this bulb, it's worth it. Just return it.