simple and no-error containing openGL programs wont render, Win 7

[Momentum]

After successfully building program, I go to run it and only get the window with a transparent center to appear.

I tried other simple codes and the same thing occurs

For troubleshooting, I'm using the simple code located at this link
http://www.cs.arizona.edu/classes/cs...ode/triangle.c

Any suggestions why I'm having issues?

I'm using visual studio 10 express on windows 7 professional

thanks in advance for any considerations