I have used SugarSync for some time now as my preferred backup solution, but every so often SS seems to mess something up on my laptop. The latest incarnation of this is SugarSync stops the OSX quicklook from working.
So if you have tried all the other fixes, like:
- resetting permission
- deleting your quicklook preferences
- qlmanage -r and qlmanage -r cache
Then try quitting SugarSync. This worked for me.
Here is the forum link on SugarSync (http://sugarsync.hivelive.com/posts/ed67d0da04?start=46&stop=60) with reference to the issue
