Hi all, (is anybody here?) vector-concatentate should be vector-concatenate, right? I don't know any english word like concatentate. Sorry if I'm wrong. Best regards, -- Paulo J. Matos : pocm@xxxxxxxxxxxxxxx Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!