I ran "cygcheck ./main.exe" on my executable, and saw that it was trying to link with C:\Windows\system32\glut32.dll which I think I installed a while back from Nate Robins web site ( http://www.xmission.com/~nate/glut.html <http://www.xmission.com/%7Enate/glut.html> ) and which has nothing to do with the glut that comes with cygwin. So I temporarily renamed the glut32.dll under system32 to "disable" it, and ran "cygcheck ./main.exe" again, and found that now it was finding C:\cygwin\bin\glut32.dll . Now my program works fine, and so do my other OpenGL+GLUT programs. I don't recall this interference between glut dll files being a problem on MS Windows XP. Anyway, thank you very, very much for the help! It solved a problem I've had for a long time.
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