Sorry for double posting. Specs as below A3000 with version 3 hardware upgrade and Sonic stage CP PC running windows XP, 2 Gb ram, athon 64 3800, 2SATA harddrives 200Gb (not running raid), Abit motherboard, Abit X800pro graphics card. creative sound card Connect was running fine no problems. new version CP came out so upgrade to that, lost libary 3 times now with same error. may have sorted it -I think the A300 was trying to recharge via USB on PC at same time as SSCP was trying to update libary. last couple of connections I have charged up via mains adapter 1st and not had a problem sorry forgot xp has all upgrades added, zone alarm firewall and avg virus guard. Songs aprox 2300. A300 has 2gb spare.