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[news.eclipse.newcomer] Problem running "Hello World" with SWT (as in Cheat Sheet)

Hello,

I am programming since 1986 but I just startet with Java and Eclipse.
The Tutorial seemed to be the right first step.
Nearly everything worked (I figured out how to include Firefox to see the
help :-) but running the SWT-version of "Hello World" gives this:

Exception in thread "main" java.lang.NoClassDefFoundError:
org/eclipse/swt/internal/gtk/OS
        at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:63)
        at org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:54)
        at org.eclipse.swt.widgets.Display.<clinit>(Display.java:118)
        at HelloSWT.main(HelloSWT.java:15)

I read all messages in this group (that took approx. 1 hour), but nothing
ther helped. This is normal ;-)

I got Linux (Suse), Eclipse 3.0.2 and the VM-Argument
"-Djava.library.path=${system:ECLIPSE_HOME}/plugins/org.eclipse.swt.${system:WS
}_3.0.2/os/${system:OS}/${system:ARCH}"
and the compile seems to work (imports OK). But it does not run.

This might be a silly error, but I can't figure it out.
Please help.

TIA

Michael