OK here goes.... Started out with 2.1, upgraded to 2.3 which worked fine with both HD1 and HD3. Continued using 2.3 with Hd1 - no problem. Upgraded to 3.0 - couldn't register with Connect so uninstalled it and re-installed 2.1 (only disc I had). Worked fine. Re-upgraded to 2.3 - now it refuses to recognise the HD1 device. Don't want to go back to 2.1 as I have 2.3 on other computer. Don't wish to initialize player(s) again as different music on different pcs in 2.3 and some music will be lost if initialize player. Any suggestions???