Need help with a C++ Runtime Library Runtime Error (R6034)

[Loso]

Whenever I try to play Windows Media Player based audio or video from a website(for example zshare) I get this error message:

"Program: C:\Program Files\Mozilla Firefox 3.0 RC3\firefox.exe

runtime error

R6034

An application has made an attempt to load the C runtime library incorrectly. Please contact the application's support team for more information."

Instead of the video being there or audio playing, there's a message where it should be and it says "video is loading" but nothing loads