Hi –
Adding a +1 on this issue. Upgraded from 5.5 to 5.6B3 and was unable to sync to my Mac over firewire. Setup reported internal clock but FireWire1 and 2 were "slipping".
Rebooted the unit a few times with no change. I saw the note above about "fix internals" so I ran that. On next reboot, the system said something about problems, and "recommend a restart". Yikes!
Powered down again and now it seems to be syncing fine.
Something should be looked at here.
Ralph
