wireless with WPA onworked fine on BETA 2... But it doesn't work on RC1 (Build 6000)... WTF! any ideas why MS is breaking--fixing--breaking Vista??? ThinkPad T40 Intel 2200BG

i have a Latitude D610with a Intel 2200BG Wifi Card inside and i can connect to my BeBox (thompson 780) and any Netgear wireless hardware using WPA Encryption just fine but i have not been able to connect to Linksys and D-Link Routers with great ease, Turning off the security features works just fine but isnt really a resolve as such, Vista is supposed to make connecting to wireless networks a breeze compared to XP but it seems to bemore difficult, especially when it has to deal with multiple profiles and hardware. Are you using the Intel Wireless Client or letting Vista handle the connection and security etc?