Device Manager errors after clean install

[Jerry]

So I clean install 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 driver for my video adapter and no
adapter at all is shown in Device Manager.

Help!

 

[Tom]

The beta test driver for ATI is available for download now. You can go on
the official website and try to download it.

 

[Guest]

That's the one I tried to load (dated Jan 29). It just hangs during the
install while detecting hardware (I think is what it says). Same thing
happened with the previous beta on the Vista preview version.

Another thing that's weird is that if I try to manually add the ATI card
through Add/Remove Hardware, the only choices are a half dozen or so Intel
adapters. No ATI. No Nvidia. Nothing but Intel.

 

[Guest]

Try to search the C:\Windows folder for drivers (in the Found New Hardware
wizard). For me, this found all my missing drivers.