Take a look at these sites.....
Advanced troubleshooting tips for general USB problems in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;310575---------------------
Why doesn't my computer detect my new USB device when I'm running Windows XP or Windows Server 2003?
http://support.microsoft.com/default.aspx?scid=kb;en-us;314634Many thanks,
Bob...