I've been running various versions of Live Mesh and Live Sync on my Mac over the past year. So far I haven't been terribly happy with Live Mesh, but it got the job done, albeit very slowly at times. I'm am very exited at what I am seeing though in the latest Windows Live Sync beta for both Windows and Mac OS X.
When installing the latest version of Live Sync, which is still in beta I ran across the following error on start:
"Sorry, there is a problem with Windows Live Sync. Please quit Sync, make sure your computer is connected to the Internet, and then start Sync again."
A Google search led me to Brian Hall's blog post at:
His specific post didn't help, but the link he provided to Microsoft sure did:
Deleting the folder at the following location seemed to do the trick for me:
~/Library/Application Support/Live Id
After deleting that and emptying the trash the Live Sync beta started no problem and prompted me for my Live ID and password.