diogenysos:Thank you so much....downloaded the VLC player and everything is working just perfectly....I downloaded Happy feet as an .avi this morning and all is working well.
Groucho Thank you also for your information and it made me feel better knowing that it wasnt just me LOL.
I decided to download the player becuase it would have been easier to get rid off if it didn't work, but it is just great, so I am happy.

Thank you both so much