help with viewing video
 

I am downloading a video clip and sometimes it will let me preview it, but other times it says...there is nothing to preview...but then it works sometimes....what is this?....its not all the way downloaded either.

Which program are you using to preview it with. I'd recommend VLC - (click on link) _ (choose nearest mirror site) as it has in-built codecs & is generally very reliable for previewing. I also prefer to go directly to the incomplete folder & open it from there rather than using the preview button.