Recif, What version of g++ are you using? If you are using a very recent version (4.3 say) then you will not be able to compile v22 without some work. The latest errors you are getting are due to missing using namespace std; in files that include <iostream> . Note that the 3.x series gcc compilers (which were used to develop v22) accepted the <iostream.h> include and assumed the use of std when the ".h" was present. Regards, Kyle -- Kyle K. Chand mailto:chand1@xxxxxxxx phoneto: (925) 422 7740