We have a couple of users with Dell D400 laptops Intel Centrino/Intel 2100 Wireless. They are getting Blue screens on a fairly regular basis. The only way to get the user back up and going is to boot into safe mode and disable the wireless NIC.
I found some articles on the internet about Intel Centrino having a bug when used with VPN software and the wireless cards. Dell has no clue and i'm useing the latest drivers and XP is managing the wireless lan rather than the intel pro set software.
Dell d400 XP pro
Intel 2100 Internal Wireless card