1. Anyone having trouble with the guide walls coming apart all the time? The Velcro raises them off the field mat just enough that when you press down on the wall (or if the robot runs over it) the bricks can loosen up or come apart. 2. We noticed that the Bluetooth adapter (the official one sold by Lego, blue "Abe" brand) isn't working on our Windows XP system ever since we upgraded the NXT firmware and/or installed the new Mindstorms software. Bluetooth works fine on our Vista system, and on a Macintosh we've used, but not on our XP system. It worked fine last year with the same computer, NXT and Bluetooth dongle. We've started over and reinstalled drivers, reassociated the NXT using the Bluetooth system setup, etc . Anyone else run into this? Tx - Glenn -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ADMIN-L. Visit https://listserv.jmu.edu/archives/vadcfll-admin-l.html to subscribe.