Hi. There is one bug which is in 1.1, 1.2, 1.3 and 1.4 version. I didn't check earlier versions. When I dvide a polygon into parts like this (http://img121.imageshack.us/img121/2061/34711052.png) and then cut them out like this (http://img19.imageshack.us/img19/3573/95451371.png), the program fails with segmentation fault.