Rich Whitehouse

I wouldn't know for sure, since I don't have the hardware to test it out on. I'd have to guess that there is some shader in singleplayer that the drivers don't handle properly, and that shader isn't used in multiplayer. But that is pure speculation. As to which Catalyst versions support that hardware as well, ATi's web site seems terribly vague, since I can't find anything solid on it. You might consider calling their tech support and forcing them to walk you through making sure you have everything up to date (but still keep in mind that the hardware is not officially supported by Prey, so you may or may not meet with success).

Thanks,
Rich