I get the can't find main class error and it jsut quits when i run double click the jar from the zip. All the 1.1 zip versions do this (also all the charactertool zips).
It depends on how DJ's startup stuff is defined. I know that in webstart you can pick a Java version. Don't think you can do that directly from the jar file though.
yeah apparently lots of people had similar issues as me with DJ and java 6 on their forums (rendering problems, can't see my objects to stamp, etc) I hope the patch comes out soon.