white lines/flicker

[stevie a]

I have a PS3 set up via HDMI to a Denon Amp and 1080p infocus IN81 projector. Love it all apart from 1 thing. When I play blu-ray films, I quite often get white lines flash up on the left hand side of the screen for a frame. Obviously the more involved in the film I am, the less I notice it, but it must be happening at least 10-20 times per film. As you can imagine, it can be very annoying and offputting.

I have narrowed the problem down to the PS3 as my Denon DVD player is upscaling to 1080p and I don't have the same problem. It appears sporadically and never in the same place. It has even happened while the film has been paused.

Any ideas on what might be causing this?

I have read in other posts about checking the 1080p 24fps setting. It is set to 1080p, but I don't know if it is set to 24fps, I'd have to check tonight.

Any help or ideas would be great.

Cheers
sa