I am using vmware with my asus wl-167-g, everything seems to be fine, the card is recognised I can find at least 5 nearby wireless networks with the wireless assistant.

However when I put the usb adaptor into monitor mode it finds nothing. But if its not in monitor mode and I use airodump-ng rausb0 - they all appear.

Is there something I need to do to make it work in monitor mode.
The asus WL-167G is Chipset 'Ralink USB' with Driver 'rt73'

Any help would be great - thank you.