Animated GIFs won't display properly in Mail.app

Question

I have a weird problem with animated GIFs received as attachments in Mail.app. On my Mac mini, they're only displayed as the first frame within the Mail message window and the animations don't play. But on my iMac G4, the same messages display the animations properly within Mail.app. Both Macs are currently running Mac OS X 10.4.4, but I've observed this problem since 10.4.3. I have the same software installed on both machines. Does anyone have any ideas why this is happening?

Answer 1

  * Test.java
  * Created on January 13, 2007, 6:52 PM
  * To change this template, choose Tools | Template Manager
  * and open the template in the editor.
package Test;
import javax.swing.*;
import java.awt.*;
import java.util.*;
  * @author Calbrenar
public class Test extends JFrame
    private JList testList;
    private DefaultListModel listModel;
    private JScrollPane serverLogScroller;
    private Container container;
    /** Set up GUI */
    public Test()
       super ("List Test");
       //Get content pane
       container = getContentPane();
       container.setLayout(new FlowLayout());
       listModel = new DefaultListModel();
       listModel.addElement("");
       testList = new JList(listModel);
       testList.setVisibleRowCount(1);
       //testList.setFixedCellHeight(35);
       //testList.setFixedCellWidth(400);
       serverLogScroller = new JScrollPane(testList);
       serverLogScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
       serverLogScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
       container.add( new JScrollPane( testList));
       setSize(700, 75);
       setVisible(true);
    public void addStatus(String str)
       listModel.add(0, str);
       //testList.setPreferredSize(new Dimension(400, 15));
       //serverLogScroller.revalidate();
       container.validate();
    public static void main ( String args[])
       Test application = new Test();
       application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
       application.addStatus("-ERR");
       application.addStatus("+OK Enter Password");
       application.addStatus("-ERR Bad Pass");
} // end class Test