If I got to settings-> accounts & sync, I see three accounts listed.

1.) my gmail account
2.) a non gmail google account (@notgmail.com)
3.) my facebook

Both my gmail and facebook will let me sync contacts with no problem, but my google apps email address (@notgmail.com) says "sync is off". When I click it, it takes me to the settings page (data and synchronization), but the page is blank. There is no option to turn sync on for this account.

This is the email address I use for google voice... so I kind of need it to sync with the rest of my accounts. Am I missing something, or can I just not sync with this address? It would seem strange to me that google would push developers to use their sync features for third party services and not bother to support their own.

Hopefully this is just me doing something wrong. Any ideas?