Device Manager errors and can't install ATI drivers for Radeon X85

I clean installed the RTM Business edition in a separate partition.
After all the updates and rebooting I'm left with 2 errors in Device
Manager:
Other Devices -> Unknown Device
System Devices -> PCI Standard PCI to PCI Bridge
Vista is unable to find any drivers for either one. Deleting them and
letting Vista re-add them doesn't help. Nothing in the properties of
either one helps me identify what they might be.

I'm also unable to install the ATI beta driver (January 29) for my Radeon
X850 adapter. It locks up during the Catalyst install (detecting hardware, I
think). No
adapter at all is shown in Device Manager.