Hmm. I don't see any input.jar, but I have replaced the lwjgl_util.jar and the lwjgl.jar files, and I've gotten farther than before. I can now see the white screen with the Voltz title for more than a half-second! But it still quits. I do think it has something to do with my Java version, however. If you have any idea on how to downgrade to Java 6, please tell me. I can't find it anywhere, because Apple supplies it's own Java versions. I did get my hands on the installer however, but running it told me I need OS X 10.6. Can I possibly go into the package and extract the Java files? I do have developer tools, so if that doesn't work, is it possible to open the package in PackageMaker.app?