Having same issues. (64 bit Mac Client). Also having to close and re-open the client. Tried to leave it overnight but when I woke up, it was still stuck at relatively the same amount of files then when I left it, meaning the client gave up at some point even trying. After 12 hours of trying now I'm still at 5,943 files to go. I can of course keep opening and closing the client (roughly every 4mb downloaded it stops), but when you need both sleep and have a job to go to, it's hardly ideal. Please fix this ArenaNet.