Nope, all of the Airport base stations are backward compatible, meaning that even the newest base stations support computers connecting with the original Airport cards. They're just limited to the speed of the card (802.11b runs at 11mb/s, rather than the theoretical 54 for 802.11g or even faster for 802.11n). You should just have to reset the network password on your eMac to the one on your new networks. Just make sure you're using the same security encryption on both sides. Hope this helps. -Hal On Apr 24, 2007, at 8:56 PM, The Sargents wrote: > Due to a recent flood, I lost the transformer to my airport extreme > (round). Apple does not sell transformers for this model any more > and sold me the newest Airport Extreme unit. Now my eMac with an > airport card cannot connect to the network because of password > issues (not recognized). Is this an issue with the older airport > card not being compatible with the new Airport Extreme? > Are there any solutions to this problem?? > --