since you can "hot plug" pcmcia cards, do as cheyenne says.. but physically take out the modem, then reinsert after you've rebooted.. if winblows recognizes it, you might get lucky and have it work again after you reinstall the drivers.. however, I've had a few pcmcia cards that would continually "lose it's place" requiring a reinstall of drivers each time I wanted to use it.. in the end, I tossed it and got another.