diff --git a/CaroloCup-CameraPlayback.cpp b/CaroloCup-CameraPlayback.cpp
index 86daedb..1fca7ce 100644
--- a/CaroloCup-CameraPlayback.cpp
+++ b/CaroloCup-CameraPlayback.cpp
@@ -45,46 +45,48 @@ using namespace core::data::image;
 using namespace core::io;
 using namespace core::wrapper;
 using namespace tools::player;
+using namespace cv;
 
 class CSVRow
 {
     public:
-        string const& operator[](size_t index) const
+        string const& operator[](uint32_t index) const
         {
             return m_data[index];
         }
-        size_t size() const
+        uint32_t size() const
         {
             return m_data.size();
         }
-        void readNextRow(istream& str)
+        bool readNextRow(istream& in)
         {
-            string         line;
-            getline(str,line);
-
-            stringstream   lineStream(line);
-            string         cell;
+            string line;
+            if(!getline(in,line)) return false;
+            
+            stringstream lineStream(line);
+            string cell;
 
             m_data.clear();
             while(getline(lineStream,cell,','))
             {
                 m_data.push_back(cell);
             }
+            return true;
         }
     private:
         vector<string>    m_data;
 };
 
-void setLabel(cv::Mat& img, const string label, const cv::Point& anchor)
+void setLabel(Mat& img, const string label, const Point& anchor)
 {
-    int fontface = cv::FONT_HERSHEY_COMPLEX;
+    int fontface = FONT_HERSHEY_COMPLEX;
     double scale = 0.4;
     int thickness = 1;
     int baseline = 0;
 
-    cv::Size text = cv::getTextSize(label, fontface, scale, thickness, &baseline);
-    cv::rectangle(img, anchor + cv::Point(0, baseline), anchor + cv::Point(text.width, -text.height), CV_RGB(0,0,0), CV_FILLED);
-    cv::putText(img, label, anchor, fontface, scale, CV_RGB(255, 255, 255), thickness, CV_AA);
+    Size text = getTextSize(label, fontface, scale, thickness, &baseline);
+    rectangle(img, anchor + Point(0, baseline), anchor + Point(text.width, -text.height), CV_RGB(0,0,0), CV_FILLED);
+    putText(img, label, anchor, fontface, scale, CV_RGB(255, 255, 255), thickness, CV_AA);
 }
 
 void errorMessage(string name)
@@ -159,7 +161,7 @@ int32_t main(int32_t argc, char **argv)
         // read out the header row
         row.readNextRow(file);
         uint32_t frameNumber=1, csvFN;
-        int32_t VPx,VPy;
+        int32_t VPx,VPy,BLx,BLy,BRx,BRy,TLx,TLy,TRx,TRy;
         stringstream frameMessage;
         stringstream VPMessage;
         frameMessage.str(string());
@@ -204,11 +206,15 @@ int32_t main(int32_t argc, char **argv)
                     // if csv parameter is set
                     if(argc==4 || (argc==3 && string(argv[1]).compare("-l")!=0))
                     {
-                        row.readNextRow(file);
+                        if(! row.readNextRow(file)) break;
+                        while(row[0].compare("")==0)
+                            if(! row.readNextRow(file)) break;
+                        
                         sscanf(row[0].c_str(), "%d", &csvFN);
+                        
                         if(frameNumber==csvFN)
                         {
-                            cv::Mat img = cv::cvarrToMat(image);
+                            Mat img = cvarrToMat(image);
                             
                         
                             frameMessage.str(string());
@@ -225,6 +231,33 @@ int32_t main(int32_t argc, char **argv)
                             if(log)
                                 cout << frameMessage.str() << " :: " << VPMessage.str() <<endl;
                             
+                            // print support points and lines
+                            sscanf(row[1].c_str(), "%d", &BLx);
+                            sscanf(row[2].c_str(), "%d", &BLy);
+                            sscanf(row[3].c_str(), "%d", &TLx);
+                            sscanf(row[4].c_str(), "%d", &TLy);
+                            sscanf(row[5].c_str(), "%d", &TRx);
+                            sscanf(row[6].c_str(), "%d", &TRy);
+                            sscanf(row[7].c_str(), "%d", &BRx);
+                            sscanf(row[8].c_str(), "%d", &BRy);
+                            
+                            circle(img, Point(BLx,BLy), 5, CV_RGB(255, 255, 255), CV_FILLED);
+                            circle(img, Point(TLx,TLy), 5, CV_RGB(255, 255, 255), CV_FILLED);
+                            circle(img, Point(TRx,TRy), 5, CV_RGB(255, 255, 255), CV_FILLED);
+                            circle(img, Point(BRx,BRy), 5, CV_RGB(255, 255, 255), CV_FILLED);
+                            
+                            double slope1 = static_cast<double>(TLy-BLy)/static_cast<double>(TLx-BLx);
+                            double slope2 = static_cast<double>(TRy-BRy)/static_cast<double>(TRx-BRx);
+                            Point p1(0,0), q1(img.cols,img.rows);
+                            Point p2(0,0), q2(img.cols,img.rows);
+                            p1.y = -(BLx-p1.x) * slope1 + BLy;
+                            q1.y = -(TLx-q1.x) * slope1 + TLy;
+                            p2.y = -(BRx-p2.x) * slope2 + BRy;
+                            q2.y = -(TRx-q2.x) * slope2 + TRy;
+                            
+                            line(img,p1,q1,CV_RGB(255, 255, 255),1,CV_AA);
+                            line(img,p2,q2,CV_RGB(255, 255, 255),1,CV_AA);
+                            
                             imshow("CaroloCup-CameraPlayback", img);
                         }
                     }
@@ -241,6 +274,8 @@ int32_t main(int32_t argc, char **argv)
             }
         }
 
+        // maybe print EOF message && wait for user input?
+
         // Release IplImage data structure.
         cvReleaseImage(&image);