I think I've found a bug in CS6/Mac.
This bit of code illustrates the problem:
var f = File("~/Desktop/test.jpg"); var files = f.openDlg();
This should provide a File Open dialog on Desktop with the file "test.jpg" preselected and you can select any type of file since a file selector was not specified.
This works fine on Win7 but on the Mac, it will only let you select jpg files. Even if you specify a selector to step around this, it still will only let you choose jpgs.
Can somebody test this for me on the Mac? I want to be sure I don't have a busted install.