I have a Toshiba MT3, just put a new lamp in and experienced two problems: 1 Despite following the instructions that came with the lamp I could not reset the clock/no. of hours. Instructions say hold down on/off, menu, input at the same time whilst plugging into the socket! That takes some doing! Anyway didn't work. 2 After a few minutes use the lamp went off! Two RED L.E.D.s came on and the projector powered down. Did this a couple of times before it refused to illuminate at all. Great anxiety as the replacement lamps are £340! I put the old lamp back in and everything is OK again. The problem with buying a replacement lamp is that with only a 90 day warranty you are obliged to use it sooner rather than later. Anyone with a Tosh carried out a lamp replacement?