I've searched and searched and all I've found relates to google calendar or exchange security settings, neither of which seem to be a problem for me.

My pre simply won't sync calendar items to or from my exchange account. Email and contacts work fine.

I've removed and added the account twice. Once it synced and the new items I'd put on my Pre (assigned to that account) synced over, and I got items I'd placed on my exchange calendar through Outlook, but then it wouldn't update.

I removed and added the last time, and didn't even get the initial sync. No errors, though, and I know my settings are correct. Any thoughts/issues I should look at/others with similar problems?