I set up a 3.6.1 AD driver with a remote loader on a 2008 DC, it's mostly a dupe of our 3.5.1 AD driver on a 2003 dc (which works). Users get associated to the driver but are not being created in AD. No errors with default trace.
I'll get a trace in the morning just was wondering if there were any differences in user stuff between 2003 and 2008, etc. that I need to look at.