Hi and thanks for replying.
I tried your suggestions but nothing seems to make any diffenrence

\SweetHome3D\src\com\eteks\sweethome3d\applet\SweetHome3DApplet.java:231: annotations are not supported in -source 1.3
[javac] (use -source 5 or higher to enable annotations)
[javac] @SuppressWarnings("unchecked")
[javac] ^
[javac] 1 error

Related to this line
encoding="ISO-8859-1" target="1.1" source="1.2"/>

in the Build.xml file and this line:

@SuppressWarnings("unchecked")

in SweetHome3DApplet.java

Any other ideas?

Regards