How do you know this system is fraud free? Reading your comment doesn't convince me one bit. I voted too, in the Netherlands, and for the first time in years I had to use a pencil again. No guarantee that there are no counting errors, but they won't be systematic on a large scale.
The Belgian government publishes the source code of the voting software the moment the bureaus close. The software of yesterday's election can be found here: http://www.ibz.rrn.fgov.be/index.php?id=1152&L=1
Real computer scientists don't comment their code. The identifiers are so long they can't afford the disk space.