Great Idea, But Problematic Execution

I really wanted to like this program, as it intends to do just exactly what I need — namely, to prepare high-quality photos for web gallery display, with resizing, sharpening and renaming options. However, after each successful export, this application becomes unstable and unusable (the display is disfigured and distorted), and one needs to close the application and restart it again. This is on a MacBook Pro Retina 15", with OS X El Capitan 10.11.3 and all current updates. Disappointing!

Simplegift about Super Resize