Weird problem with loadMovie and stopping midway through

It’s been awhile since I’ve posted anything here, but it’s nice to be back. I have a site at http://tdcwc.com. After the intro, under the projects menu, if you click a project and while it’s pre-loading, you click another project, the stop actionscript doesn’t work anymore for the loaded movies. The sub-movies will just zip through all the frames blatently ignoring the all-powerful stop command. If you let the movie load completely, there isn’t a problem. Why would this be happening?

I have an empty mc called holder_mc that I load the external swf’s into. I even tried adding holder_mc.unloadMovie(); before the load command, but that did nothing.

Any ideas?

Jake