ok, you aren't getting this....the file is not corrupted...this happened on my old computer, my new one, and a few friends of mine...all completely different computers that downloaded wmp 9 at different times. I just want to know how to go back to the old version, I am not reinstalling everything again, because I need this computer everyday for school, and I have at least 10 GB of programs that I need to be able to use EVERYDAY. I guess nobody here can help me because they always treat me like I haven't tried anything and know nothing about computers. Can only those that actually KNOW how to fix this, respond.