Upgrading from the current 2.0.1 beta build, my resume.dat prevents uTorrent from opening. I've tried moving it out of %AppData%/uTorrent, and it opens, but starting over with a blank resume.dat isn't really an option (I've got 1300+ torrents in various locations on my hard drive). It's definitely not corrupted either because I downgraded back to 2.0.1 with the old resume.dat, and it works fine.