There is a problem with the FileChooser on MacOS X.
All components have a wrong position.
See the attached image for more details.
This image shows the layout problem
I cant launch it under leopard, i get that message
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
You manage to launch it, how did you do it?
You must upgrade the Java VM to 1.6 version.
ChemicalCovers is built with this version and can not start with a minor version