java ClassNotFoundException when installing

Hi,

I just downloaded UltraMixer (with java version), but when trying to install I get the following error:
java.lang.ClassNotFoundException:
net.sourceforge.mlf.metouia.MetouiaLookAndFeel

I’m using Ubuntu, and I have java installed (version 1.4.2). When I download a newer version of java and run the install script, it seems like the new version was not installed (java -version always generates the same message).

I tried installing the UltraMixer without java version, but then I got an other error, probably because of this wrong version.

Any ideas?

I managed to solve the problem by installing the newer Java version.
ubuntuforums.org/showthread.php?t=76702