Enterprise Library 3.1. installation problem

Hi,
I’m facing a problem with the installation of Enterprise Library 3.1. Something is messed up with the process because when I run it an error message pops-out:
“Enterprise Library 3.1 – May 2007
Enterprise Library 3.1 – May 2007
Please wait while the setup Wizard configures Enterprise Library 3.1 – May 2007. This may take several minutes.
Status: Installing Block Factory
Enterprise Library 3.1 – May 2007
The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2869. Ok”

I am open to suggestions on how to solve this problem. So please feel free to collaborate.
Thanks.
