Leave the UserID field enabled when it wasn't completely filled

src/net/java/sip/communicator/plugin/jabberaccregwizz/AccountPanel.java

@@ -42,7 +42,7 @@ public class AccountPanel
 
     private final JPanel emptyPanel = new TransparentPanel();
 
-    private final JTextField userIDField = new TrimTextField();
+    final JTextField userIDField = new TrimTextField();
 
     private final JPasswordField passField = new JPasswordField();
 
@@ -317,7 +317,6 @@ String getUsername()
     void setUsername(String username)
     {
         userIDField.setText(username);
-        userIDField.setEnabled(false);
     }
 
     /**

src/net/java/sip/communicator/plugin/jabberaccregwizz/JabberAccountRegistrationForm.java

@@ -377,6 +377,7 @@ public boolean commitPage(JabberAccountRegistration registration)
     public void loadAccount(JabberAccountRegistration accountReg)
     {
         accountPanel.setUsername(accountReg.getUserID());
+        accountPanel.userIDField.setEnabled(false);
 
         String password = accountReg.getPassword();
         accountPanel.setPassword(password);