Vista - Wireless Connection Problem

Good Day,

I own two laptop computers; one with Windows XP Media Center OS and the other with Windows Vista Ultimate (64-bit) OS. I have WPA enabled on the Westell Versalink 327W DSL Router. The computer with XP MCE OS has no problem connecting to MS IE7 wirelessly. On the computer with Windows Vista Ultimate OS, when I attempt to connect to Windows IE7 it prompts me for the WPA key, but after I enter it, it won't connect to IE7. Is it a compatibility issued between MS Vista and the Westell device. I have Verizon DSL and they have troubleshooted it, but can't fix the problem. I contacted Gateway and they tell me it is a compatibility issue. I have even tried disabling WPA and it still won't connect. Any assistance is greatly appreicated.

Got the Vista Blues,
John K.