FTP error when loading folders containing files

[Kathleen]

I am having problems getting FTP to work properly for my users.

If they FTP a file over, it works fine. Even just a folder works.

The problem I am running into is if I want to FTP a folder, containing a folder...with both containing files.

I get an error saying [60] looking for completion line, 226 Transfer complete, and ! Error occured during transfer. Where do I start? It looks like both folders were moved over, and 2 of the 8 files that should have loaded in the nested folder were uploaded. None of the files in the first folder made it.
What am I missing.

Thanks