Thanks for the low down. I've got the same prob w/ b7. Thought some additional details might help w/ problem solving.

win2000 SP2/emplode b7
RIO mk2a /b7= 10/100 hub (linksys) = PC LNE100TX
download/sync = 14 root playlists/avg. 4 subs each, 1.5GB (sorry, got the unit from SB 4 hrs ago and didn't read the BBS posts about sync issues)

All OK till:
Writing Player Configuration Completed
Restarting Player Error

Errors:
Sync failed while restarting player.
An operation attempted on something that is not a socket.
(error 0x80072736)

Keil