[baccusboy]

Sounds like a compatibility issue between the PS3's resolution sensor via HDMI and your projector. I'm guessing this is caused due to your DVI hook-up.

If you want, you could get the Component cable hook-up for the PS3, and it'll definitely work through component. Even up to 1080p. The PS3 just defaults to let you choose whatever you want. If you choose too high (not a problem, given your projector accepts 1080p anyway) it just goes black, and will default back after 30 seconds if you don't press a button to OK the new resolution. Even if you screw it up somehow and press that button while it's black, you can still reset your resolution to 480p automatically by holding the power button down on the PS3 for like 5 to 7 seconds. Had to do that on mine a few times due to my own stupidity. You can then adjust to the proper setting.

The difference between HDMI and component is very slight. On movies, component actually looks better to me because my stupid LG TV sucks at HDMI (but you lose the PS3's standard DVD upscaling functionality over component, as well as the extra color/deep black settings, which I basically ignore anyway). On games, I notice that the image is just a very minute tad less sharp, and whites a smidge less bright (but many whites in HDMI bloom too much, in my opinion).

I noticed that Wal-mart sells the component PS3 hook-up cable from Sony. They even had a 3rd party one on close-out today for $8 here in my home town. Just saw that 2 hours ago.

You could also try a VGA adapter out of the PS3 as well (though I've never tried that). I think they're available.