Hello- I'm relatively new to airports, and was trying to help someone set one up for wireless access. Their Mac Mini connected fine, however their WinXP machine would not connect. After getting into the Airport config utility I noticed the radio mode was set to 802.11n (802.11a compatible). Since the XP machine is using an 802.11g card, I need that to be set to .11b/g compatible. Everytime I set it to .11b/g compatible and click update, the airport restarts but reverts back to the .11a compatible mode. I also tried turning the wireless off and back on which seems to set a default SSID and sets the mode to .b/g compatible, but after restarting, the airport is using .11a compatible mode again. Does anyone have any ideas that might help me update the radio mode? Thanks for any help.