When I downloaded crossover games, I had a big problem that the text would just render as blocks of on all screens.
I fixed it by messing with the settings. I up'ed the resolution to 1024, set texture rendering to high and graphics to high. Not sure which one was the right fix, but it made the game look like normal.
UPDATE: actually, when I logged in again, the text was black again. I increased the resolution and that fixed it. When I decreased it again to allow full screen, it stayed fixed
Now to figure out why cmd-click doesnn't discard cards for me....
UPDATE 2:
To right click, put two fingers on your touch pad and click the click button. You may have to turn this setting on in the settings.
it turns out, you just have to toggle the resolution. In options, I toggle from my preferred 1024x768 to anything else and back, hit o.k. and voila! the problem goes away.
A new problem is that if I do this process multiple times, I sometimes get an all-white screen with music and have to restart.