I have a library (Endnote version 9.0, PC, Windows XP) with approx. 7,700 entries. The last item ID is about 9500. Lately importing other Endnote libraries and deduplicating at the same time has been slow, and today it just gets hung up (program is “not responding” in Windows task manager).
I have tried saving the library as a new library and importing to the new library but the same things happens.
Any idea how to fix this?