Hi all, ive just bought LW 1.41.8 pro as my previous version seemed to be dying! anyway installed ok but as soon as i try to open it i get this:

Could not launch.... This application requires Java 1.5 or later, but only the following Java versions are installed: 1.4.2, 1.3, 1.3.1, 1.4. Updating to a newer version of Mac OS X may resolve this.

As far as i can tell there isnt a java 1.5 for 10.4 and mines all up to date (1.42)!

has anyone got an idea what i should do?
thanks.