I replaced the 802.11b wifi-b radio card on a working Aironet 1230B (AIR-AP1230B-A-K9) access point with a Cisco 802.11g wifi-g radio card. The access point does not work any more. The console readout shows repeated attempts to to boot from flash. The g-radio card is sealed, new, from Cisco channel. What is my problem? Is the g-radio card defective? Was the Aironet 1231B designed for the b-radio card only? DO I have other issues that have caused failure? When I take out the g-radio card and put back the original b-radio card, the 1230B works (on wifi-b).