Strange... I had SNEmulDS 0.6a on my slot 1 cart and it worked fine UNTIL I put in a slot 2 cart (SuperCard Lite). Googled and I found there are 2 versions of SNEmulDS 0.6, one that locks up when running any game that uses a slot 2 expansion (shows loading process, then white screen), and a version that functions fine with the SuperCard inserted, and has an added asterisk button on the top right that turns off the GUI.