Laptop will not shut down with the DWA-643 inserted in the expresscard slot. Operating system is XP SP2 Media. Laptop will just reboot itself. Of course, if I hold the power button down the system will shut down or take the card out. I have tried the Microsoft methods to shutting a system down if the system will not shut down. I’ve tried two different cards and get the same result. Any ideas or patch to resolve? Also, I have updated to the current driver on the Dlink download site. Using Windows zero configuration. Upgraded to latest BIOS available.