Thanks for the info.
I moved some of the .txt files to a folder named "Import - Hold" to play around a bit. I was having some difficulties updating some groups, and after reading a couple of threads regarding the Import folder, I decided to turn off automatic updates and update a few groups at a time.
I have since run a manual update of latest group updates, but I hadn't finished with all of the previous updates (in "Import - Hold").
Can I move those .txt files back into the Import folder without causing any damage? When I ran the manual update of all groups, is it likely to have caught everything up, or will I be missing the headers from the "Import - Hold" directory.
Thanks again for your help. You always get me up and running again!