[BackupPC-users] 3.0.0 Beta - error - unknown module '/'

[ken <ke...@go...>]

I am trying 3.0.0 beta and get this error when trying a backup on a
windows box:
Error connecting to module / at 192.168.0.101:873: Unknown module '/'
Backup aborted (Unknown module '/')
dump failed: Unknown module '/'

In version 2 it would indicate module C (drive letter)
The config.pl and rsyncd.conf are the same as version 2.

Have done everything that I have done on version 2.

Any ideas?  Changes in 3?

Thanks in advance.
Ken