MN700 and MN-730. Help!!

setup base station connected to a winME pc just fine,
external cable modem. next i tried to setup a wireless
connection on another winXP pc with MN-730 pci. installed
adaptor correctly, but
it fails to detect wireless network (even without any
security key), even when base station is face to face with
the wireless card. no firewalls etc, anywhere.
the only time i can see an available wireless network is
when i configure the wireless adaptor as a ad-hoc network,
but i cant complete my setup even with that.
any suggestions, help please?
thanks,
shiva.


shiva