I'm on a MacBook Pro 2.4GHz Intel Core 2 Duo with 4GB of RAM, the GeForce 8600M GT video card, and I'm running OS X.5 Leopard. My problem is that every time I try to open the Brush Creator in Painter X the program crashes. I've done the full reinstall several times now as well as loading the Painter 10.1 update and the issue remains. I was wondering if anyone else was having this problem. I've contacted Corel with the issue and have not yet received a response so I thought I'd bring it up here. Are any of you running Painter X on a Mac with Leopard installed and if so do you have any similar problems with it?