Webutil for Forms 10g - Apple Mac Client - Save File Dialog Box

I am trying to setup a button on a 10g Form to download a file from an Oracle 10g database. The button uses Webutil package and the client_get_file_name function to ask for a file name and directory to place the file via file transfer from the database.
Using any Windows client, when you press the button the form brings up a Dialog box for the file name. Everything works fine in Windows.
But when I use a Apple Mac client, I get this message when I click on the button:
“oracle.forms.webutil.file.FileFunctions bean not found. WEBUTIL_FILE.FILE_SELECTION_DIALOG_INT will not work.”
I can only assume this maybe because the MAC doesn't use the DLL files that are associated with Webutil, like jacob.dll, etc. ???
Does anybody know of how to get a dialog box to appear on a Mac client from Forms 10g?

The Windows java console says:
RegisterWebUtil - Load WebUtil Version 10.1.2.0
Loaded image:..
proxyHost=null
proxyPort=null
connectMode=HTTP,native
Forms Applet version 10.1.2.0
When I checked the Mac's java console, I don't get the "RegisterWebUtil" I get:
proxyHost=null
proxyPort=0
connectMode=HTTP, native.
Forms Applet version is : 10.1.2.0
Then I get the error messages below..
What might cause those?
java.lang.ClassNotFoundException: oracle.forms.webutil.clientInfo.GetClientInfo
     at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:179)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
     at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:119)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at oracle.forms.handler.UICommon.instantiate(Unknown Source)
     at oracle.forms.handler.UICommon.onCreate(Unknown Source)
     at oracle.forms.handler.JavaContainer.onCreate(Unknown Source)
     at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
     at oracle.forms.engine.Runform.processMessage(Unknown Source)
     at oracle.forms.engine.Runform.processSet(Unknown Source)
     at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
     at oracle.forms.engine.Runform.onMessage(Unknown Source)
     at oracle.forms.engine.Runform.processEventEnd(Unknown Source)
     at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source)
     at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Component.java:4068)
     at java.awt.Container.dispatchEventImpl(Container.java:2068)
     at java.awt.Component.dispatchEvent(Component.java:3903)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
     at java.awt.Container.dispatchEventImpl(Container.java:2054)
     at java.awt.Component.dispatchEvent(Component.java:3903)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
and
java.lang.ClassNotFoundException: oracle.forms.webutil.fileTransfer.FileTransfer
     at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:179)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
     at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:119)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at oracle.forms.handler.UICommon.instantiate(Unknown Source)
     at oracle.forms.handler.UICommon.onCreate(Unknown Source)
     at oracle.forms.handler.JavaContainer.onCreate(Unknown Source)
     at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
     at oracle.forms.engine.Runform.processMessage(Unknown Source)
     at oracle.forms.engine.Runform.processSet(Unknown Source)
     at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
     at oracle.forms.engine.Runform.onMessage(Unknown Source)
     at oracle.forms.engine.Runform.processEventEnd(Unknown Source)
     at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source)
     at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Component.java:4068)
     at java.awt.Container.dispatchEventImpl(Container.java:2068)
     at java.awt.Component.dispatchEvent(Component.java:3903)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
     at java.awt.Container.dispatchEventImpl(Container.java:2054)
     at java.awt.Component.dispatchEvent(Component.java:3903)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

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catch(e) {
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