Hello everyone, i have a problem with libboost_regex-gcc-mt-1_33_1.a on a debian Linux and a simple function to test some Names: bool is_valid_name(const char *s) { if(!s) return false; const char* re = "^[a-zA-Z][.*0-9a-zA-Z._-]{4,60}$"; static const boost::regex e(re); return regex_match(s,e); } Everything works well when i put this Funtion in a simple Programm and run it. When I put the same Function in my cgi which is wrapped through fastCgi and handled by an apache webserver i get the following Error message: Invalid content of repeat range so in a simple programm the range check {4,60} in boost regex works but in a more complex program it didd'nt. I have testet the same function on Linux using: libboost_regex-gcc-mt-1_33_1.a and free BSD using: libboost_regex.so.3 and get with both libs the same error message. It would be nice if someone can help me find a solution or tell me what went wrong here. Thanks in advance!