Pygame Black screen

In preperation of my PI turning up in a few weeks I thought I would learn some Python using Pygame. I am using Python 2.7.3 and Pygame version 1.9.1.
After running every script ensuring all code was 100% correct, I get the black Pygame box popup but nothing else. No graphics, colours nothing. I then have to force quit the Pygame window.
Bit of a noob but welcome any suggestions.

Cheers

Have you tried the examples like chimp.py for example
What os are you running? whats your comp specs?

Thanks, this was an issue with my setup. Works OK now Yam.