The problem is, the python script does not work on my PC. Is there anything I
need to modify in the source code, for example, if the width is 2000px and the
height 1000px, or is the code ready to use? I get a synatx error when I run the
script 1 to 1: http://img28.imageshack.us/img28/1204/screenshotj.gif
