Vista - Audio Device/Microphone - not working

Microphone Drivers, Just did a clean install of Win Vista RC1. Windows Vista
Ultimate Dell Inspiron 1300, Intel(R) Celeron(R) M processor 1.40 GHz , 128MB
video card, 1GB RAM 80 GB HD. 32-bit OS.
I passed the compatibility test before i installed it. I have a system
rating of 1.0 in the windows experience index.

I am unable to use my microphone. when i try to go to , windows speak
recognition, i receive an error. Wizzard could not launch the wizzard could
not start make sure you audio hardware is working properly and check your
audio configuration in the audio devices and sound themes control panel.

In the control panel for hardware/sound/recording, there are no audio
devices installed. tried adding new hardware, tried windows updates. not
having much luck finding any documentation on it.
Any help would be appreciated