I just made the switch to EndNote X5 from Reference Manager last week. My first efforts at adding new references from Google Scholar resulted in a lot of duplicates being imported. Virtually nothing was filtered out, no matter how I changed the Duplicates criteria in Preferences. Oddly, dragging a pdf into EndNote resulted in successful duplicate detection.
After searching the EndNote Forum, I found a message about similar problems with importing from Ovid. A message from Leanne seemed to have the only solution: creating a new library, importing all new references into that library and then moving the new references into my permanent library. A lot of bother and I still got too many duplicates that I needed to identify one-by-one. Too clunky for long term use, as I import hundreds of references per month.
Reference Manager, despite its many faults, at least had a workable duplicate detection algorithm. Why doesn’t EndNote?
As an aside, I seem to be getting most solutions to my problems from posts by Leanne. Don’t know who she is, and I’m sure there are other excellent mentor posters, but I hope TR is doing something for her (and the others). Free software upgrades, frequent flier miles, invitations to office parties, flowers on her birthday? Just don’t lose her!