Dear Andreas and Fabian wow that's pretty wonderful - thank you for all the great comments!
Dear Andreas, yes - you are absolutely right, when i tested it in my local linux machine i had the second and third line (i.e the graphic outputs) commended out... So,i tested only the first line, saw that it worked , got exited and started immediately try and create the git patch. Meanwhile , i commended out the other two lines - thinking that i will test them too - but i finally never did (i forgot cause i was too nervous and exited to send you guys the patch!). I promise to be much more calm and precise in the future. I am definitely going to keep on working on this, i 'll hit you up with more comments and questions soon. Thank you all again! Kate
