diff --git a/代码/workspace_robo4/robocode.ui/src/main/java/net/sf/robocode/ui/dialog/PreferencesSoundOptionsTab.java b/代码/workspace_robo4/robocode.ui/src/main/java/net/sf/robocode/ui/dialog/PreferencesSoundOptionsTab.java
index d41274b..3d0a112 100644
--- a/代码/workspace_robo4/robocode.ui/src/main/java/net/sf/robocode/ui/dialog/PreferencesSoundOptionsTab.java
+++ b/代码/workspace_robo4/robocode.ui/src/main/java/net/sf/robocode/ui/dialog/PreferencesSoundOptionsTab.java
@@ -329,6 +329,7 @@ public class PreferencesSoundOptionsTab extends WizardPanel {
 		public void actionPerformed(ActionEvent e) {
 			Object src = e.getSource();
 
+            
 			if (src == enableAllSoundsButton) {
 				setAllSoundsButtonsEnabled(true);
 			} else if (src == disableAllSoundsButton) {