I would also like to know this.
We are waiting for the 2.02 SDK to see if the 5800 series will play nice with SETI.
Yeah it really sucks! ATI has the hardware - Nvidia has the software. Well, more or less.
Nvidia drivers are bad - but ATI drivers are just a pain in the *****!!
Come on you (management) guys! Hire a few more software developers to write better drivers, to support communities, help game developers - and you could be the No. 1 for YEARS!