Has anyone one else from the "ex Z2 support group" come across these: 1) The intro Screen freezing. When the startup timer ends you cant select the input. This has only happened once (when I was demoing as well ) 2) The cooler fan and flashing red light dont switch off. This has happened twice now (one of them with the freezing intro screen). The manual says fan should be on for about 5 mins. First time it happened after an hour I switched off at mains and switched on, it worked ok then. Second time I only waited 10 mins and did same. This was with screen freeze, bulb was only on for 30 seconds (300 hours off bulb life for that one methinks). I use it 3-4 times a week for 2-3 hours each time. Anyone else had this happen?