After installing btsync 2.0 I have this problem. Using Chrome and the ruTorrent gui interface I try to add a new torrent, and click choose file. It loads the open file dialog. However, the file type is default set to .btskey file. Screenshot: http://i.imgur.com/MTeM73a.png I do not know what a .btskey file is, and why it has overridden the file association, instead of defaulting to "All files". This bug started occurring only in Chrome and after installing btsync 2.0. Thanks for any help in removing this.