I have a three year old Seleco SVP-400 (bought second hand from Popeye) which has around 1000 hours on the tubes. The projector's been fine until around a month ago, and the problem's getting worse... It tends to happen like this: I turn on the proj, around 1-10 mins later the picture disappears, and I hear the electric screen jerk upwards for a fraction of a second. The green power light on the proj stays on though... If I turn the proj off and on (from the remote) it is sometimes OK, or sometimes goes off again. Sometime I get this when it goes off: (See attachment) It tends to help if I turn the proj off and an at the mains, though sometimes it still fails. Anyone got any ideas?