hi, my goal ist to get the oglmodule running on win2k. The compiler checks for glClear and find nothing. so i put oglmodule in the ext folder of ruby. But the compiling process of ruby stops because he didnt find byacc. Where do i get byacc for windows? Or must i install the cgywin stuff to get ruby->oglmodule running? Im using VC6/sp3 on win2k. Thanks for any help. bratsel _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com