Any timetable for when the synchronization service, Link, will be available. I get this message on the page:

Building from scratch means that syncing isn't compatible with Opera versions 14 and higher ... yet.
You will be able to sync with Opera soon.

So how soon is soon?

Gotcha, thanks.

I disabled Documents extension and now the attachments are downloading and viewable. So do I just dump the Documents extension?

Yes, I did add that one recently. Is it the cause?

Perhaps it was after the update to Opera 24 for Mac OS X (Snow Leopard), dunno, but now every time I try to view or download an email attachment, Opera throws me to Google docs viewer and I get a message that it's unavailable. I do not, and have never used Google docs. What's happening here? How to fix it? I don't see any options in preferences that might fix it.