PS3 Problem, Red Sreen

[brett_day]

ok, so i have a weird problem. Have searched on here, google etc and cannot find anything on this

everything was fine with my ps3 until yesterday. i got a new sony receiver for lossless audio. My ps3 used to just connect to my tv via hdmi then i had an optical out to my old receiver. Now of course everything is running straight through HDMI. I switched Audio out to HDMI and now i have a weird problem

i have the sony Home theme as my theme which is blue in color. When i boot the ps3 all is well, now if i play a game when the game has loaded the screen is covered in a red tint! When i go back to the xmb the blue home background is red as well. it does not happen every time i play a game or watch a movie but it does seem to be increasing in frequency.

I have tried different HDMI cables and have tried different inputs on both the recever and the tv but this problem still exists! I do not get an error message like some people have shown on youtube etc, but i do get a sceen that is tinted red! Any idea what this is? anyone experienced this? Is my ps3 crapping out on me? any help appreciated