This just in from Rage3d.com. ATI has issued this statement about the AGP 8X problem that some users are experiencing:
ATI is aware of a small number of reports of incompatibility between the RADEON 9700 PRO graphics accelerator and certain AGP 8X motherboards. It is important to emphasize that the number of incidents is very low. Extensive testing has been done, in conjunction with motherboard chipset manufacturers, motherboard manufacturers and with retail available motherboards, to determine if compatibility issues exists. From these tests, it has been concluded that no compatibility issues exist with the current or soon to be released AGP 8X motherboards. For the full press release warp 2 ... Rage3D.com.
ATI is aware of a small number of reports of incompatibility between the RADEON 9700 PRO graphics accelerator and certain AGP 8X motherboards. It is important to emphasize that the number of incidents is very low. Extensive testing has been done, in conjunction with motherboard chipset manufacturers, motherboard manufacturers and with retail available motherboards, to determine if compatibility issues exists. From these tests, it has been concluded that no compatibility issues exist with the current or soon to be released AGP 8X motherboards. For the full press release warp 2 ... Rage3D.com.