Can't debug Tomcat in IntelliJ

I'm using JDK 1.4.2, Tomcat 4.0.6 and IntelliJ 3.0 build #676.

Everything is setup according documentation. I am able to 'run' the tomcat web-application fine within IntelliJ, but unable to debug.

I get the 'Could not find the mail class. Program will exit' error dialog and the I get the following message in the console:

java.lang.NoClassDefFoundError: Files\IntelliJ-IDEA-3/0\lib\idea_rt/jar
Exception in thread "main"

Everybody have and idea?


thanks!
BJ