Colored Streaks in Full Screen.

I think I have a problem with OpenGL in my computer. When i Maximize a screen window that runs OpenGL code, there seems to be unwanted streaks of color running the entire length of the screen. This happens when i write my own OpenGL programs, and also when I view graphs generated by Matlab. Does anyone know why this happens and how to avoid it?
Thanks

Have you tried updating your video card’s drivers?

No I have not updated my video drivers.