when I added the code to trap the regex_error, the previously clean build returned the following during linking but I didn't think it would be a problem: Info: resolving vtable for boost::regex_errorby linking to __imp___ZTVN5boost11r egex_errorE (auto-import) I'm linking to /libboost_regex-gcc-mt-1_33_1.a and cygboost_regex-gcc-mt-1_33_1.dll Thanks again. [ I decided to add boost while using my mom's machine and I found out I had accidentally included boost in "her" cygwin install so it is quite likely I botched something ] Mike Marchywka 586 Saint James Walk Marietta GA 30067-7165 404-788-1216 (C)<- leave message 989-348-4796 (P)<- emergency only marchywka@hotmail.com Note: Hotmail is blocking my mom's entire ISP claiming it is to reduce spam but probably to force users to use hotmail. Please DON'T assume I am ignoring you and try me on marchywka@yahoo.com if no reply here. Thanks. _________________________________________________________________ Test your celebrity IQ.  Play Red Carpet Reveal and earn great prizes! http://club.live.com/red_carpet_reveal.aspx?icid=redcarpet_hotmailtextlink2