diff --git a/install.sh b/install.sh
old mode 100644
new mode 100755
diff --git a/src/fenrir/screenDriver/linux.py b/src/fenrir/screenDriver/linux.py
index 165d0d2d..bd4a8e28 100644
--- a/src/fenrir/screenDriver/linux.py
+++ b/src/fenrir/screenDriver/linux.py
@@ -116,6 +116,7 @@ class driver():
         self.env['screenData']['newNegativeDelta'] = ''
         self.env['screenData']['newDelta'] = ''
         self.env['screenData']['newAttribDelta'] = ''                           
+
         # changes on the screen
         oldScreenText = re.sub(' +',' ',self.env['runtime']['screenManager'].getWindowAreaInText(self.env['screenData']['oldContentText']))
         newScreenText = re.sub(' +',' ',self.env['runtime']['screenManager'].getWindowAreaInText(self.env['screenData']['newContentText']))        
@@ -149,4 +150,8 @@ class driver():
                 else:
                     self.env['screenData']['newDelta'] = ''.join(x[2:] for x in diffList if x[0] == '+')             
                 self.env['screenData']['newNegativeDelta'] = ''.join(x[2:] for x in diffList if x[0] == '-')
+        
+        # track highlighted
+        if self.env['screenData']['oldContentAttrib'] != self.env['screenData']['newContentAttrib']:
+            pass                
                 
diff --git a/src/fenrir/utils/screen_utils.py b/src/fenrir/utils/screen_utils.py
index bb9504c7..554f7720 100644
--- a/src/fenrir/utils/screen_utils.py
+++ b/src/fenrir/utils/screen_utils.py
@@ -10,24 +10,24 @@ from collections import Counter
 def insertNewlines(string, every=64):
     return '\n'.join(string[i:i+every] for i in range(0, len(string), every))
 
-def splitAtrrLines(string, every=64):
+def splitOnPos(string, every=64):
     return list(string[i:i+every] for i in range(0, len(string), every))
 
 old = b'eeeemmmeeeeeeeee'
 new = b'eeeeeueeeeeeeeee'
 text = 'das ist ein test'
 
-def trackHighlights(oldAttr, newAttr, text):
+def trackHighlights(oldAttr, newAttr, text, lenght):
     result = ''
     currCursor = None
     if oldAttr == newAttr:
         return result,  currCursor
     if len(newAttr) == 0:
         return result,  currCursor
-    textLines = insertNewlines(text,4)
+    textLines = insertNewlines(text,lenght)
     textLines = textLines.split('\n')    
-    old = splitAtrrLines(oldAttr,4)
-    new = splitAtrrLines(newAttr,4)    
+    old = splitOnPos(oldAttr,lenght)
+    new = splitOnPos(newAttr,lenght)    
     if len(old) != len(new):
         return result,  currCursor
     if len(text) != len(new):