Hello! It's my first post sent to this group, and my question is about installation. Do you know some site where I can find detailed information about this? I've installed cygwin and green-card, and I think that I have all is needed to install HOpenGL. When I run the configure file on cygwin, happens an error that blocks the process, and this error is related with gcc (C compiler). It say that the C compiler (gcc) can't createexecutables Can you help me?? Thanks! Marcelo Pita marcelopita@ibest.com.br Icon - Internet grátis, e-mail, MP3 player, vídeo, rádio e muito mais. Pegue já o seu em www.ibest.com.br/icon/mail1.html. É grátis!