I've experienced fewer problems with RIFT in CrossOver than other games, but there is one nagging problem. To upgrade an item, I have to press ALT-MOUSECLICK on the item in the gui. Apparently that combination is not getting passed through to the RIFT game. I also have not been able to find any way to change keybinding within RIFT to recognize a different combination.
So is there any way to change CrossOver settings so this combination does get passed through, so I can finally upgrade some of my items? :)