OpenRA

The older macbooks have a gma950 graphics chip, which don't support OpenRA very well currently. There is a work around that works with some graphics cards, so may work for you: Open the app bundle (right click on OpenRA.app, then "Show Package Contents") and open the file Contents/Resources/shaders/...

Could you post your perf.log? If you're running windows it is in your My Documents\OpenRA\Logs directory.

Our current args are `SupportDir=<filepath>` which sets the path to the user support dir where we save settings, logs etc, and overrides for any settings flag that can exist in settings.yaml, in the form `<type>.<flag>=<override>` -- eg `Game.Mods=cnc` or `Player.Name=foobar`. See OpenRA.Game/GameRu...

Sounds like an interesting issue. Can you post some screenshots?

Does the game crash, or run slowly, or is everything fine aside from the graphical problems?

This is what is known as a `desync'. If the game state on different machines diverges, we crash instead of letting the game continue (which would lead to very odd behavior, as you would be essentially playing different games). To track down the cause of the desync, we need the sync.log of the two di...