NoClassDefFoundError

Hi,

Using Windows XP SP2, netbeans 5.0 update 6

Please bare with me while I ask a couple dumb questions. The first has
to do with release .jars vs ide debug runs. Why does my application run
when I press F5, but if I compile it with F11 and run it from the
command line I get the following error:

Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/batik/tran
scoder/image/PNGTranscoder

Thanks