Realtek AC'97 audio setup/uninstall error on vista x64 (with

I'm trying to either uninstall the old realtek ac'97 drivers.. or
install the newest 6251 apo drivers for the onboard realtek device..

I get this message either way:

title: realtek AC'97 audio

An error (-5009: 0x8002802b) has occurred while running setup.

Please make sure you have finished any previous setup and closed other
applications.


I've made sure of this last note several times.. no go..

Any thoughts?

Thanks