I´m having a problem with Windows XP Pro losing the wireless configuration in our company’s laptops. What happens is the WEP key is lost, the adhoc network is turned on or the 802.1x configuration is activated. Once I manually re-configure the setup the PC´s jump right back on the network. These are Centrino machines (IBM X31, T42 and Sony Vaio) with built in wireless capability. I’ve seen other solutions suggest using a separate PCMCIA card but I don’t want to go that route unless I need to. Any suggestions?