Windows Media Player problems

[jarvis24]

[edited from related support email]

Hi there, I am having a problem that is noted on the knowledge base but no
solution. I am attempting to run a "movie" .wmv file, and the first time I run it through Medialab a black box appears where the video should be. If I leave Medialab open and rerun the experiment file, the video plays as it should. If I close the Medialab program and reopen it, I get the black box again the first time through. I have "enhanced video" enabled, and if I uncheck it then nothing plays at all.

This problem is not occurring on my laptop with windows XP, only the ones in the lab. I am running Medialab 2008 on both, but the lab machines use Office 2007 and WMP 11. Have you figured out the source of this problem?

[edited from support email followup]

I found a workaround and would like to share it with you: Instead of treating it as a "movie file", we instead embedded the 180-second video on the background of an Instruction screen that we gave a parameter of (d180). It now plays just fine every time, and automatically moves forward after 180 seconds is up.