Shared Library error



I'm having a problem with an application launching,......
It's a Game (XIII) but that shouldn't really make a difference,..... (right?)
I installed it a couple of months ago and was playing here and there, and got busy with other projects.
Well, I went to launch the application the other day and now I get a "Shared Library error"

The application "XIII" could not be launched because of a shared library error: ".<XIII><IndirectX CW8 Release><OpenGLLibrary><>"

I know this happens when moving files around, but nothing was moved,.......
I've tried to delete the Application and preference files and re-install,. but no luck, same error.

Can someone help??