I got a Viewsonic Pro8200 (new, as far as I know) off Amazon in September and have the issue described in the original post here.
To be clear, the projector never shuts itself off, but becomes unresponsive and develops some visual artifacts (vertical lines of noise). When this happens, none of the buttons or the remote have any effect and if there was an overlay on screen at the time (such as showing the volume when it is adjusted), the overlay gets stuck and does not fade away like it should. This happens with PS3 via hdmi (I need to try other devices/connections), but I did try it at 720p to see if it happens at the lower resolution and it did - and then I changed the PS3 back to 1080p, and it changed it's output, but the projector now only showed the upper left portion of the image like it didn't react to the new resolution.
The good news is that every time this happens, I've been able to hold down the power button until it does a hard shutdown. Then when I start it back up, after it gets all started back up it works perfectly from that point on. But it seems to usually have this problem the first time I turn it on (not an immediate thing, but doesn't take too long to develop), then I hard power it off and turn it back on and after it gets started up it works great, so it's become this annoying ritual to use the projector.
I've been meaning to troubleshoot it at least with some other devices and/or try to connect the PS3 up with component cables instead of hdmi to see if it still happens.
Is it possible there might be a firmware update that would help?
If I call up Viewsonic, what kind of experience should I expect? (From what I read on Amazon, they have good warranty services? Been hoping it won't come to that though)
I'd appreciate any thoughts/advice on these matters!
EDIT: Confirmed it does the same thing when using my OUYA on the other hdmi port with a different cable. Also happens when using my PS3 via component cables.
Edited by TrooperMax2099 - 4/8/14 at 12:27pm