Mac version acting up since updating

[fkevin]

Hey all, my OpenRCT has never acted up, but latest version, 0.4.11, has made my game open but that about all.  Dialog boxes don't line up so I can't open via the arrow, can't open any of the tabs in the parks rides, and when I open a previous scenario, I get an error that says "One or more objects in this park require RollerCoaster Tycoon1 linked for proper display. Fallback images will be used." Any help or how to reset the game would be helpful, I hope. Thanks in advance.