Well I am a complete newby so please excuse if this question is stoopid.....but please give me all the advice you have!!!!!

Whenever I try and download a WMV file from LW Basic, the download completes and adds to my shared folders, and registers as a WMV file also, however, none of these files EVER open!!!! - WMV Player starts up and opens the application - the video file name also appears in the playlist for WMV....BUT when I click on the file to play it NOTHING! - any suggestions PUHLEEEEEEEESE! - I hope I'm not the only person who has this issue....