Hi Pipers, I put a pre-cvs test tarball on Piper 0.0.2 online on http://bioinformatics.org/~jarl. The reason this code is not in cvs yet is that it first should be tested on compiling. I develloped this code on a slackware 8 system, so if you use something else please give the tarball a try and let me know wether or not it compiles. Jarl