Versions 2.2.1, 3.1.3 and 3.2 are a hell theses days, downloading is slow, allocating (on 3.2) take ages and recheck never ends. I already disabled everything on cache, deleted my settings.dat, wich make it be better for one or two hours. I'm using uTorrent for some years, but now that I have 1100 torrents to seed it's not working for me anymore. But seems that this 3.3 version will be good, at least testing the recheck it is doing what the others aren't able to do anymore: reach the end of a single 986MB file. I have a pretty good computer (Core i7, 18GB memory, HDD 1TB + NAS 9TB), all connected thru a 1Gbit network wich gaves me a 40MB/s transfer rate between NAS<=>computer. Unfortunately I can't keep that version running, my private trackers won't let me download with it.