title: SWT: problems with clicking button after using setEnabled() on Linux
body: <p>I have a strange case with SWT and Button after using <code>setEnabled()</code> - seems if I disable and enable button at least once - I cannot properly click with mouse on it anymore... Already minify code to very basic:</p>
  
  <pre><code>import org.eclipse.swt.SWT;
  import org.eclipse.swt.events.SelectionEvent;
  import org.eclipse.swt.events.SelectionListener;
  import org.eclipse.swt.layout.GridLayout;
  import org.eclipse.swt.widgets.Button;
  import org.eclipse.swt.widgets.Display;
  import org.eclipse.swt.widgets.Shell;
  
  public class TestButton {
  
      public TestButton() {
          Display display = new Display();
          Shell shell = new Shell(display);
          GridLayout mainLayout = new GridLayout();
          shell.setLayout(mainLayout);
          shell.setSize(100, 100);
  
          Button testButton = new Button(shell, SWT.PUSH);
          testButton.addSelectionListener(new TestClickListener());
          testButton.setText("Click me!");
          //testButton.setEnabled(false);
          //testButton.setEnabled(true);
  
          shell.open();
  
          while (!shell.isDisposed()) {
              if (!display.readAndDispatch()) display.sleep();
          }
          display.dispose();
      }
  
      class TestClickListener implements SelectionListener {
  
          @Override
          public void widgetDefaultSelected(SelectionEvent e) {
          }
  
          @Override
          public void widgetSelected(SelectionEvent e) {
              System.out.println("Click!");
          }
      }
  
      public static void main(String[] args) {
         new TestButton();
      }
  
  }
  </code></pre>
  
  <p>When I keep these 2 lines commented out - I can properly click on a button and always get  "Click!" logged, but if I uncomment them - then I can't click on button properly with mouse anymore - button visually seems to be clicked, but nothing is logged...</p>
  
  <p>Am I doing something wrong here? Or maybe it's some kind of bug on Linux platform? Because on Mac running the same code I never experienced such problems...</p>
  
  <p>Thanks for any hint!</p>
  
  <p>P.S. Running code on Ubuntu 9.10, Gnome + Compiz, Sun Java 1.6.0.16</p>