Sometimes when you go to watch a video the player sometimes wont appear, if you refresh the browser it shows up.

If i click to rate a video sometimes i get an error 404 page, this can also happen when a member tries to login gives a 404 error, ONLY sometimes.
I think this is due to some problem with your server. If script work, it always work the way it is programmed to do unless there is some thing external causing problem.

You can check the videos at

http://video.bizhat.com

and see if you face same problem on that site too. I never faced such problem on any of the sites, so it can be some thing local at your side or your web server.

Anyway we will check and see if there any problem exists.