CompuServe Messages

My other question about the Windows player is this: I have a script that plays approximately 15 animations. The loop is set to "forever". I have tested this on my 486 and it has not gotten hung up. But when I gave the exact same script and files to a friend to test out for me, he said that he left it on all day untouched and that it stopped playing at some point during the day. He disabled TSR's and screensaver before playing. What could have caused this? It's alarming to me because I'm sending this out to a client and it's supposed to play "forever". What is forever, literally? My friend says that no one touched the pc during the day and that there were no Windows events that could have caused it to stop. Also, the power did not go out that day. Thanks.