I'm sure it's between OSX and the way they enable OpenGL, since Moi ran just fine on the same machine with Vista + W7.

I also tried it with Linux Mint + wineconfig a while back and was able to get the viewports going just fine at one point, but the rest of the ui would just not work properly...probably cause the wine 1.3 libs were still under heavy development (i think they were on alpha at that point)...

since then i reloaded the mac with lion and haven't looked back...