you do have to use it else how does it know your top site![]()
I guess MobileMe preferences added on disabled top sites as an option that I had set when Safari 4 came out.
Running this in terminal fixed my issue.
defaults delete com.apple.Safari DebugSnapshotsUpdatePolicy
Even though it's a year later, just wanted to say thanks Freedevil - running the above terminal fixed my missing Top Sites previews in Safari 6 on Lion.
I guess MobileMe preferences added on disabled top sites as an option that I had set when Safari 4 came out.
Running this in terminal fixed my issue.
defaults delete com.apple.Safari DebugSnapshotsUpdatePolicy