Roaming Profiles Do Not Unload

[CntdwnToExtn]

I seem to be having some problems with Roaming Profiles.

Every so often when a user logs off, the profiles do not copy back to the server 100%. It will leave the 'username' folder on the computer with a random empty folder inside.

When the user logs back on, they are given the username.DOMAIN or username.000 profile.
This then screws up custom settings for programs that look to their profile - program is looking for username/custom/settings but their active profile is username.domain/custom/settings.

I have to then log them out, delete the stale copy and have them log back in - annoying

I'm running UPHClean
set the GPO to attempt to unload roaming profiles 60 times (default) per minute at logoff
Do not allow cached copies of profiles to stay

This still does not work.

Users are on Thin Clients that connect to Windows XP.
Roaming Profiles are shared from a DFS share between 2 Domain Controllers.
Profiles tab for users in A.D. are set to \\domain\share\username

I can't seem to find anything about this...
Any thoughts?

Thanks