ps3->receiver->projector
with a standalone avr with hdmi passthrough capability? no issue. i use one myself for ps3, ps2, laptop and pc. if you're using a cheapo htib combination unit? there might be some issues.
your post is cut off.. you need to list the details in the post body not in the title. unless you give us some more details such as what avr, what projector and how you are connecting we can only guess.