Let me expand slightly on my concept, by giving three (trivial?) suggestions for what could be included: a) Check that gcc, g++ and g77 are all the same version. b) At least for Linux, check that /etc/ld.so.conf contains /usr/local/lib, then run /sbin/ldconfig -v and check that there are not any broken links c) Check that users have rights to libraries in /usr/local/lib Any suggestions for other "tips", or an existing web page with more? ----------------------------------------------- Laurence Marks Department of Materials Science and Engineering MSE Rm 2036 Cook Hall 2225 N Campus Drive Northwestern University Evanston, IL 60201, USA Tel: (847) 491-3996 Fax: (847) 491-7820 mailto:ldm@xxxxxxxxxxxxxxxxxxx http://www.numis.nwu.edu -----------------------------------------------