Roaming profile won't sync

[obitori]

I have a couple Windows 7 boxes using a ebox samba server as the domain controller.  I've got it set up for roaming profiles via the E-box control page. 

One of the users' profile stopped syncing.  They got a "profile not synchronized fully upon logging out.  See activity log or system administrator for more details." 

What's the best way to fix this?  I back stuff up regularly, so I can usually recreate files.

Any suggestions?

Thanks!