Index: src/org/tp23/antinstaller/renderer/text/TextMessageRenderer.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/TextMessageRenderer.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/TextMessageRenderer.java	(working copy)
@@ -64,10 +64,10 @@ public class TextMessageRenderer impleme
 				return false;
 			}
             
-            if(TextUtils.isFalse(command)) {	            	
+            if(TextUtils.isNegativeAnswer(command)) {	            	
             	return false;
             }
-            else if(TextUtils.isTrue(command)) {	
+            else if(TextUtils.isAffirmativeAnswer(command)) {	
             	System.out.println(); // This is needed to always have the same spaces between pages
                 return true;
             }
Index: src/org/tp23/antinstaller/renderer/text/SummaryPageRenderer.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/SummaryPageRenderer.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/SummaryPageRenderer.java	(working copy)
@@ -64,10 +64,10 @@ public class SummaryPageRenderer extends
 	            command = reader.readLine().trim();
 	            out.println();
 	            
-	            if(TextUtils.isFalse(command)) {
+	            if(TextUtils.isNegativeAnswer(command)) {
 	            	page.setSummaryRejected(true);
 	            }
-	            else if(TextUtils.isTrue(command)){
+	            else if(TextUtils.isAffirmativeAnswer(command)){
 	            	page.setSummaryRejected(false);
 	            }
 	            
Index: src/org/tp23/antinstaller/renderer/text/TargetInputRenderer.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/TargetInputRenderer.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/TargetInputRenderer.java	(working copy)
@@ -50,7 +50,7 @@ public class TargetInputRenderer extends
         out.print(" Y or N   [");
         out.print(TextUtils.getString("_default_"));
         out.print(": ");
-        if (TextUtils.isFalse(iField.getSuggestedValue()))
+        if (TextUtils.isNegativeAnswer(iField.getSuggestedValue()))
         	out.print("N");
         else
         	out.print("Y");        
@@ -59,7 +59,7 @@ public class TargetInputRenderer extends
         
         String input = reader.readLine();
         out.println();
-        
+
         if(TextUtils.isVoid(input)) {
             input = iField.getSuggestedValue();
         }
Index: src/org/tp23/antinstaller/renderer/text/TextUtils.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/TextUtils.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/TextUtils.java	(working copy)
@@ -27,7 +27,7 @@ class TextUtils {
 
     private static final ResourceBundle RES = ResourceBundle.getBundle("org.tp23.antinstaller.renderer.text.Res");
 
-    private static final char[] affimativeChars = parseChars(getString("affirmativeChars"));
+    private static final char[] affirmativeChars = parseChars(getString("affirmativeChars"));
     private static final char[] negativeChars = parseChars(getString("negativeChars"));
 
     static final int PAGE_BLANK_LINES = 0;
@@ -148,30 +148,30 @@ class TextUtils {
     }
 
     /**
-     * does the string represent true default = true
+     * check wether the string represent an affermative answer
      * 
      * @param entered String
      * @return boolean
      */
-    static boolean isTrue(String entered) {
+    static boolean isAffirmativeAnswer(String entered) {
         if(entered.length() == 0) {
             return true;
         }
         char first = entered.charAt(0);
         boolean isTrue = false;
-        for(int i = 0; i < affimativeChars.length; i++) {
-            isTrue |= Character.toUpperCase(first) == affimativeChars[i];
+        for(int i = 0; i < affirmativeChars.length; i++) {
+            isTrue |= Character.toUpperCase(first) == affirmativeChars[i];
         }
         return isTrue;
     }
 
     /**
-     * does the string represent false default = false
+     * check wether the string represent a negative answer
      * 
      * @param entered String
      * @return boolean
      */
-    static boolean isFalse(String entered) {
+    static boolean isNegativeAnswer(String entered) {
         if(entered.length() == 0) {
             return true;
         }
Index: src/org/tp23/antinstaller/renderer/text/LicensePageRenderer.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/LicensePageRenderer.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/LicensePageRenderer.java	(working copy)
@@ -37,6 +37,12 @@ public class LicensePageRenderer extends
         }
     }
 
+    // FIXME: duplicated from OutputField
+    private boolean isTrue(String value) {
+        if(value == null) return false;
+        return value.equalsIgnoreCase("true") || value.equalsIgnoreCase("yes");
+    }
+
     private boolean renderLicensePage(LicensePage page) throws InstallException {
         try {
         	printHeader(page);
@@ -55,7 +61,7 @@ public class LicensePageRenderer extends
                                    
             Pager pager = new Pager(license);
             String strUsePaging = page.getUsePaging();
-            boolean usePaging = strUsePaging != null && TextUtils.isTrue(strUsePaging);
+            boolean usePaging = strUsePaging != null && isTrue(strUsePaging);
             if(usePaging) {
             	while (true) {
             		out.println();
@@ -82,13 +88,13 @@ public class LicensePageRenderer extends
 	            out.print(TextUtils.PROMPT_STRING);
 	            command = reader.readLine().trim();
 	            
-	            if(TextUtils.isFalse(command)) {
+	            if(TextUtils.isNegativeAnswer(command)) {
 	            	out.println();
 		            out.println(TextUtils.format(TextUtils.getString("licenseRejected") + getContext().getInstaller().getName() + "."));
 	            	page.setAbort(true);
 	            	return false;
 	            }
-	            else if(TextUtils.isTrue(command)){
+	            else if(TextUtils.isAffirmativeAnswer(command)){
 	            	out.println(); // This is needed to always have the same spaces between pages
 	                return true;
 	            }
Index: src/org/tp23/antinstaller/renderer/text/CheckboxInputRenderer.java
===================================================================
--- src/org/tp23/antinstaller/renderer/text/CheckboxInputRenderer.java	(revision 587)
+++ src/org/tp23/antinstaller/renderer/text/CheckboxInputRenderer.java	(working copy)
@@ -61,16 +61,16 @@ public class CheckboxInputRenderer exten
                 break;
             }
 
-            if(InputField.isTrue(input)) {
+            if(TextUtils.isAffirmativeAnswer(input)) {
                 iField.setValue("true");
                 break;
             }
-            else if (InputField.isFalse(input)){
+            else if (TextUtils.isNegativeAnswer(input)){
                 iField.setValue("false");
                 break;
             }
 
-            out.println("Please answer \"true\" or \"false\"");
+            out.println("Please answer \"yes\" or \"no\"");
             out.println();
             out.print(TextUtils.PROMPT_STRING);
         }