On Mac OS X, Transmission version 1.42 (currently the latest available):
I manually update the blocklist, but every time I close down the program and restart it, the # of "IP address rules in list" resets back to 445,236. Granted, this is a large number, but if I hit the update button, it improves by at least a few hundred. I've checked the support posts and haven't seen anyone else having this problem. Not sure if it is unique to Mac or not. Is there some setting (somewhere) that I need to change to get the blocklist to "stick"?