problem with DisplayImpl..

 I compiled visad from the command line by doing
C:\visad>javac *.java which compiled fine because the Nmake thing gives 100
errors when i tried it.
Later when i tried to run my applet by doing
C:\brobbs>appletViewer Vasxe.html
i get the following error
java.lang.NoClassDefFoundError: visad/DisplayImpl
        at java.lang.Class.newInstance0(Native Method)
        at java.lang.Class.newInstance(Class.java:237)
        at sun.applet.AppletPanel.createApplet(AppletPanel.java:586)
        at sun.applet.AppletPanel.runLoader(AppletPanel.java:515)
        at sun.applet.AppletPanel.run(AppletPanel.java:293)
        at java.lang.Thread.run(Thread.java:484)

then i tried to manually compile javac DisplayImpl.java

it gives the following error again

C:\visad>javac DisplayImpl.java

DisplayImpl.java:58: removeAllSlaves() in visad.DisplayImpl cannot implement
rem
oveAllSlaves() in visad.Display; attempting to assign weaker access
privileges;
was public
public abstract class DisplayImpl extends ActionImpl implements LocalDisplay
{
                ^
1 error


is there any work around for this error ?

thanks,

Isaac