Yesterday, Sugarsync prompted me to install an update. After installation, it complained parts of it was installed separately and refused to run. I uninstalled it via /Applications/SugarSync\

Then I did a fresh install. Still no luck, it kept crashing. I fired up the Console to see if I can find any errors. I found some errors related to xfsmond, particularly:

10/11/11 5:43:46.788 PM [0x0-0x57057].com.SugarSync.Manager: launchctl: Error unloading: com.sharpcast.xfsmond

I fixed the permissions of the Launch Daemon for it via

sudo chmod 644 /Library/LaunchDaemons/com.sharpcast.xfsmond.plist

And loaded it via

launchctl load /Library/LaunchDaemons/com.sharpcast.xfsmond.plist

Voila, now SugarSync Manager runs fine, no more crashes. Hope this post helps someone…