So I just switched from ApeX to RubiX and I really like this ROM. Seems to be a little snappier, and I love the 10% battery increments.
There's only two problems I've noticed with this ROM:
1) The multitouch keyboard is not included, so it doesn't have the speech to text option for texting, Gtalk, etc.
2) I've already read some others having this problem with Gmail not syncing properly. I know people are saying this is a Google/Gmail/Android issue, but I never had this problem with the stock Froyo build or the ApeX ROM.
Great job on the ROM, hopefully these things can be addressed in the next update.
1) Multi-Touch kbd: http://www.sephtin.com/rubiX/rubixFocused-PATCH-DefaultFocusedKeyboard.zip
2) Sync is not checked by default.
Menu> Accounts> Your google account, make sure "Sync Gmail" is checked.
If that's not it:
Did you restore from backup? That's usually the cause of this, I believe.
2 things to try: wipe data/cache for the gmail app
Menu> Settings> Applications> Manage Applications> all tab> Gmail>
force stop, wipe data, wipe cache.
If that doesn't work, uninstalling, and reinstalling the gmail app has been reported to work.
Let us know if that doesn't solve the issue(s).
Thanks for the link to the MT Keyboard.
The fix you suggested of clearing data/cache from the app seems to have done the trick.
Thanks!