diff --git a/res/values/strings.xml b/res/values/strings.xml
index 5c087d69..ff316f9b 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -28,4 +28,7 @@
 	<string name="c_redo">redo</string>
 	<string name="c_clear">clear</string>
 	<string name="c_paste">paste</string>
+
+	<string name="c_calc_color_display_title">Color expressions</string>
+	<string name="p_calc_result_precision_title">Precision of result</string>
 </resources>
diff --git a/res/xml/preferences.xml b/res/xml/preferences.xml
index eef77cd2..351ab219 100644
--- a/res/xml/preferences.xml
+++ b/res/xml/preferences.xml
@@ -6,16 +6,16 @@
 
 		<org.solovyev.android.view.prefs.NumberPickerDialogPreference
 				a:key="@string/p_calc_result_precision_key"
-				a:title="Precision of result value"
+				a:title="@string/p_calc_result_precision_title"
 				a:defaultValue="5"
 				range:boundaries="0;10"/>
 
 		<android.preference.CheckBoxPreference
 			a:key="@string/p_calc_color_display_key"
-			a:title="Highlight expressions in brackets"
+			a:title="@string/c_calc_color_display_title"
 			a:defaultValue="true"/>
 
-		<org.solovyev.android.view.prefs.FloatRangeSeekBarPreference
+<!--		<org.solovyev.android.view.prefs.FloatRangeSeekBarPreference
 				a:key="@string/p_drag_distance_key"
 				a:title="Distance of drag event"
 				a:text=" pxs"
@@ -37,7 +37,7 @@
 				a:text=" degrees"
 				a:defaultValue="0;45"
 				range:steps="5"
-				range:boundaries="0;45"/>
+				range:boundaries="0;45"/>-->
 
 	</PreferenceCategory>
 
diff --git a/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java b/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
index bfd5d515..5ff6204a 100644
--- a/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
+++ b/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
@@ -248,5 +248,7 @@ public class CalculatorActivity extends Activity implements FontSizeAdjuster, Sh
 		final Boolean colorExpressionsInBracketsDefault = new BooleanMapper().parseValue(this.getString(R.string.p_calc_color_display));
 		assert colorExpressionsInBracketsDefault != null;
 		this.calculatorView.getEditor().setHighlightExpressionInBrackets(sharedPreferences.getBoolean(this.getString(R.string.p_calc_color_display_key), colorExpressionsInBracketsDefault));
+
+		this.calculatorView.evaluate();
 	}
 }
\ No newline at end of file
diff --git a/src/main/java/org/solovyev/android/view/prefs/AbstractDialogPreference.java b/src/main/java/org/solovyev/android/view/prefs/AbstractDialogPreference.java
index f7ebc3cf..e9adc999 100644
--- a/src/main/java/org/solovyev/android/view/prefs/AbstractDialogPreference.java
+++ b/src/main/java/org/solovyev/android/view/prefs/AbstractDialogPreference.java
@@ -100,9 +100,9 @@ public abstract class AbstractDialogPreference<T> extends DialogPreference {
 
 		final LinearLayout.LayoutParams params = getParams();
 		if (params != null) {
-			result.addView(v);
-		} else {
 			result.addView(v, params);
+		} else {
+			result.addView(v);
 		}
 
 		return result;