I've been downloading a lot of episodes of "That 70's Show" off Kazzaa and one of them, Episode 323 - Canadian Road Trip, won't play. I downloaded it in Windows Media format and when I went to click on it to run, it does nothing. So I went to delete the file and got a message saying the file could not be deleted because it was in use by another program. I had Windows Media Player closed and all other media players. I've also run a virus scan using McAfee and it came up with nothing. I've shut down and restarted and it still says the program is in use by another program or application. My OS is Windows XP and I currently have a cable connection to the internet. I use McAfee for anti-virus and a firewall. How do I get rid of this program? (And as a side note: I downloaded the file a second time thinking maybe just the first one was corrupt, but the second does the same thing as well).

Paul