Why is it when someone who is testing a product, gets a response to use something else and does not assist with the product. Not everyone likes to break away from what they are accustomed to, and would like that program to work.
I also understand that this is a beta, and not all programs will work, but has been out long enought that most should be able to assist with the issue. I personally have not had any issues with WMP but I also do not use it enough to tell you what could be wrong.
Sorry I couldn't be of much help, but the post above me isn't really either.