I picked up a Dlink USB bluetooth adapter today, and it’s the lastest firmware version B4. It keeps giving an error about “valid security code not found”, but firmware B4 dosen’t use a security code since it’s built in. I emailed DLink’s tech support and spoke to one guy, and he told me “some” XP users are having difficulty with the software that was made with this version (B4), and asked me to install (B3)‘s software???, I tired that and no luck. Any ideas…