Can't get past welcome screen
I've just downloaded Dimension on my Mac after doing a clean install, but can't seem to get past the welcome screen:

Whenever I click 'create new' or 'open' nothing happens
Also there is nothing in the menu bar apart from 'Quit'... which also doesn't work, I have to force-quit the app

Could this be anything to do with my Mac being a late 2009 model? It is getting quite old now! But I generally don't have problems apart from it being slow at times
