This is happening on Window7 64bit too. I didn't have this issue until I installed 2.6.19. Now even the simplest report of summing up an expense report of less than 50 entries takes a couple of minutes to appear with the "GnuCash is not responding" error message. -- Sent from: http://gnucash.1415818.n4.nabble.com/GnuCash-User-f1415819.html