Problems with sync - now have duplicate CG's

I’m afraid you have real problems with sync. I loaded on my home computer and it updated but now every desktop, laptop,ipane,phione has duplicate CG’s!! 562 of them!! and no way to resolve since sync is now corrupted . . you need to turn off sync for all my machines, so II copy in a good backup copy before all the corruption and live with one machine working. Can’t deal with sync anymore . . .

Steve