My 1 1/2 year old Epson 8350 has and Auto Iris Error which to date has occured maybe 8 times and each time I have had to unplug the projector for a few minutes to get it to work. Anyone have this problem? I believe I have like 1400hrs on it. Why does unplugging the unit make it work again its soo weird. Would Epson cover this under warranty?