argoUML

Hi there,

I downloaded the last stable version of argoUML (0.24) and installed it 
without any trouble.

However, I get the following error message:
Exception in thread "Import Thread" java.lang.NoClassDefFoundError: 
javax/mail/internet/AddressException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:164)
        at 
org.argouml.uml.reveng.java.PackageContext.get(PackageContext.java:158)
        at org.argouml.uml.reveng.java.Modeller.addImport(Modeller.java:392)
        at 
org.argouml.uml.reveng.java.JavaRecognizer.importDefinition(JavaRecognizer.java:600)
        at 
org.argouml.uml.reveng.java.JavaRecognizer.compilationUnit(JavaRecognizer.java:510)
        at 
org.argouml.uml.reveng.java.JavaImport.parseFile(JavaImport.java:175)
        at 
org.argouml.uml.reveng.java.JavaImport.doImportPass(JavaImport.java:106)
        at 
org.argouml.uml.reveng.java.JavaImport.parseFiles(JavaImport.java:78)
        at 
org.argouml.uml.reveng.ImportCommon.doImportInternal(ImportCommon.java:514)
        at 
org.argouml.uml.reveng.ImportCommon.doImport(ImportCommon.java:488)
        at org.argouml.uml.reveng.Import$2.run(Import.java:439)

.... when trying to import the sources of the project I'm working on to 
do reverse engineering.

Any hint of what's going on?

Thanks!

Alex.