Pink-screen PS3 non-hdtv prob!! Help!?

So I bought a PS3 and haven't upgraded my TV situation to an HDTV...so I bought a R/G/B PS3 cord and am currently using it. I held down the power button for 10 secs and reset it already. The graphics are still really good and the sounds impeccable, BUT everything is a tinge of pink. Everything. The PS3 home screen, DVD playback, games, internet...everything. I've tried to unplug the cord and replug it back in, and other R/G/B ports on my tv. It just doesnt seem to come in normal. Whites, greys, pretty much anything neutral or red is pink-ish.