Why can't I publish my movie?

I made a movie on Windows Movie Maker, it's just over 4 minutes long, and consists of numerous video clips (wmv files), and a song (mp3 file), no transitions or credits, but a few effects (speed up, fade to black, etc). When I try to publish it it starts publishing but when it gets to 25% published it gets stuck and the estimated time remaining just keeps clocking up, its at 132 minutes now. I have tried it many times but it always gets stuck at 25%. I've restarted the computer and tried everything I can think of but it just won't publish. The only thing different now from when I've published movies in the past is that at the bottom of the screen on the far right on the toolbar where you see all the icons for programs running there is around 20 ffdshow video decoders and 2 ffdshow audio decoders running. So I just want to know how can I publish this movie (without remaking it on another program, it took hours)?