Bruce, am I supposed to have received your gold cd by now? Just wondering. cheers, Luby Liao -- Luby Liao, Department of Math/CS, University of San Diego, San Diego, CA 92110 (619)260-4021(O), (619)452-7143(H), (619)452-7762(fax) 'Twas brillig, and the slithy toves Did gyre and gimble in the wabe: All mimst were the borogroves And the mome raths outgrabe -- L.C.