FLV files getting cut-off when uploaded to web server

Hi everyone… I’m importing videos into flash. When the .FLV files are imported directly from my computer, they play the whole way through without any problems. However, when I import the .FLV files directly from my web server, they get cut-off. They stop playing after just a few seconds. I have no idea as to why they won’t work once uploaded to my web server! Any suggestions?

Thanks!
Nicole