Hi, at the moment I use bittorrent sync version "2.0.128 (36)" on a laptop with intel core i7, windows 8.1. I am syncing a folder of about 300gb, and it is currently receiving/indexing at the decent speed 120 kb/s. However, the user interface is completely unresponsive! Right clicking to get the menu takes about 20 seconds to respond to. Any action at all takes 20 seconds or more. Restarting does not help. Is it the sheer size of the folder that brings it to it's knees? One thing: I paused the synching and removed the folder, so I could move the partially synced folder to my second harddrive. Then I shared the folder again, and asked btsync to save into the (moved) partially synced folder. I hoped it would be intelligent enough to see it was a partially synced folder. Could this be the problem? btsync is not slow on the 'source' computer from where I sync. Thanks for any help!