Hi Mr_Q
I have the MA301 and MA401 adapters (PCMCIA and PCI convertor) working with RC1 on three machines without any problems at all.
The machine which was Windows 98 complained about drivers after the upgrade, but installing the standard Windows 2000 drivers on the CD worked (once the SSID was setup). The Windows 2000 systems I upgraded worked straight away.
All these are talking to each other and the internet via and ME102 wireless access router.
Regards