10.4.8: Airport busy-loops when in range of a WPA2 Enterprise network

After installing the 10.4.8 upgrade, the airport process hangs at 100% CPU when within range of a network secured with WPA2 Enterprise. The solution has been to kill it via "Activity Monitor". Everythin works fine with a normal WEP network.
The workaround has been to turn airport off before entering the office. Forgetting to can completely disable login. The machine just hangs, without accepting keyboard input for the password. The mouse pointer (that delightful beach ball) moves, though.
Anyone have suggestions as to how this may be fixed?
MacBook Pro 15" Mac OS X (10.4.8)

And, yes, I have tried that "remove & add back to preferred networks"-thing.

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i have a for loop inside of while loop.when i press stop for while loop, i also would like to stop for loop.how can i solve this problem?thanks

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10.4.8: Airport busy-loops when in range of a WPA2 Enterprise network

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