I'm having a very strange problem with an InFocus LP335 LCD projector. The projector powers up like usual, and then I get image like I should...but no matter what, the bulb shuts off after about a minute of use. I've already checked to make sure that there's no inactivity timer set (there isn't), and the image disappears no matter what input the projector is set to. I could be in the menus, changing options, and the lamp will shut off. After it shuts off, the projector stays powered on, and won't go back into standby; I have to unplug it to power it off. I'm not sure how many hours are on the lamp, but it looks like someone has already tried resetting the lamp timer (it shows 0 hours). I've also tried removing the lamp, blowing out all the dust, and reseating it -- no dice.
I've worked with a ton of projectors, and none has ever had this behavior. Does anyone have any ideas, short of buying a new lamp (which I won't do, as they cost more than the projector is worth), than I can try?