Hi, In case anyone else was curious about this, I have found an interesting discussion regarding this issue in newsgroups: http://groups.google.com/groups?hl=sl&lr=&ie=UTF-8&oe=UTF-8&threadm=dcog42wqmr.fsf%40soluble.dstc.edu.au&rnum=1&prev=/&frame=on Best regards, Matej