A while ago I upgraded the Airport Extreme card in my first generation Core Duo MacBook Pro to one from a newer MacBook (Pro?) so I could run 802.11n. When holding down option and clicking on the airport menu icon it almost always showed PHY Mode: 802.11n and Transmit Rate as 130. After I updated today it always shows 802.11g and 54. I restarted into my Windows 7 Bootcamp partition and it shows being connected at 130. I have a Linksys e2000 router running DD-WRT. Under OS 10.6.5 the dd-wrt wireless tab reports connecting at 54 mbps and 130 mbps under Windows 7. Does anyone have any suggestions on how I can fix this? Here is the information from the Airport tab of System Profiler: Interfaces: en1: Card Type: AirPort Extreme (0x14E4, 0x8C) Firmware Version: Broadcom BCM43xx 1.0 (188.8.131.52.1) Locale: FCC Country Code: US Supported PHY Modes: 802.11 a/b/g/n Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165 Wake On Wireless: Supported Status: Connected Thanks!