Torque 2D 1.8 Freezes Whenever a File Dialog is Opened

This, as luck would have it, is probably a Mac-only problem which means that since there aren't a great abundance of Mac-users here, it will be hard to get a fix. But I find that if I use "save as" to write a tilemap, particle file, scene or if I load anything (basically, make that Apple-style window pop up) the engine always freezes. I tried to wrack the source for some "pause scenegraph" code to remove, but I couldn't find one. Has anyone had this problem with a Windows computer? Does anyone know how to fix it?