I installed Firefox 4 on 2 of my computers, and enabled the sync feature on both. Right after setting up the sync I saw that my bookmarks from each machine had been transferred to the other. Perfect. But I then created some new bookmarks on PC 1, but it's been over 4 hours and they haven't synced to PC 2. I have tried opening/closing FF on both PCs and rebooting both PCs, but nothing. In the Sync tab of the FF options, there is no "force sync" button.....the closest I have found (and maybe this is the "force sync" button?), is the "Reset Sync" option in the "Manage Account" drop-down. However, even after doing this several times on both of my PCs, my bookmarks still have not been transferred to PC 2. I assume that I should not even need to do this (sync my bookmarks manually), and that FF would sync my bookmarks automatically every time it is opened/closed, or every 15 minutes or something like that. Is there something I am missing? How often is FF supposed to be syncing my bookmarks? Any help is appreciated. Thanks.

Oh, and here's some possibly helpful info: In the Sync tab of the FF options, both PCs have Bookmarks, Passwords, and Settings checked off. They are both running Windows 7 64-bit. PC 1 was upgraded from FF 3.6 to FF4, while PC 2 was just formatted and Windows reinstalled, so FF4 was installed on it directly (not upgraded from previous FF version).