Really fed up this evening.
I watched the MotoGP from around 5pm until 7.30pm and everything was fine then I left the projector on while I made my evening meal and started watching a film shortly after 8pm. I noticed some black dots in the bottom 12 inches or so of the screen, along the full width. I checked that there wasn't any dust on the lens and changed to a live broadcast instead of the recorded film in case it was something on the film. The marks were still there. By 9pm a couple of white dots had appeared, quickly followed by several more. By the time I had finished watching the film there were too many white dots to count, much more than there were on the original DMD chip. I checked the total hours since I replaced the chip and its just done 27 hours since I replaced it on April 1st but apart from an initial brief test to check that all was OK it was the following weekend before it was fastened to the ceiling again and used for a few hours.
I have contacted the supplier to see what they are going to do about it as the invoice did say that it was guaranteed for 30 days from delivery, so I may or may not be covered and to what extent I am uncertain.
Has anyone else had any problems after replacing their DMD chip after such a short time ?