I tried talking to Dell Support yesterday via online chat. The CSR gave me two things to try, but I ended the session because I thought of something else that I needed to do before trying the two suggest downloads. The two downloads were the AMT HECI and AMT SOL/LMS drivers. Neither of these installed correctly. Both resulted the following error message:
This computer does not meet the minimum requirements for installing the software. Setup will exit.
Today, I got back online to talk to Dell Support again via chat. We ran through all the usual drivers and possible problems. At some point, I gave him the Device ID from Device Manager for the device in question, which was USB\VID_413C&PID_8149\6&6060274&0&1. I believe this helped him with discovering that the Dell HTML site does not have a driver (R197537) for the radio control on the bluetooth chip. This is different than the bluetooth driver (R197513) on the included discs, which I already installed. The HTML site did not have either of these drivers listed for Windows XP.
For future reference, here's the link to that driver:
http://ftp.us.dell.com/network/R197537.EXE
Hope this helps someone. Happy computing...