CS and HL say I can't play online because of IPX or something and says I'm using a proxy, I'm not using aproxy and I don't know what IPX is.

Help if you can.

I understand the difference in sound quality is a major part of next gen but graphics look fine on a tube as long as it's 20+ inches so you can make out some detail, Is it worth getting and HDTV and 7.1 surround sound system to fully experience the PS3? Or will my 15 year old RCA 21" tube do fine? I mean is it not worth getting the PS3 without the tech to fully enjoy it?

It gives true blacks and excellent colours but it's not anything special at all should I make the jump to a 21" HDTV before I get a PS3?