On (release) run .swf?


I am developing a simple flash website see here -->

This loads a new .swf file (on release - open URL) when the user selects one of the option buttons i.e. home, about RG, etc.

However, this is causing IE to freeze, it works fine if I open an html file which contains the .swf file?? but not if I reference the .swf file direct.

Should I have a different html page for each swf file?

what am I doing wrong?

I saw this code on one of the examples:
on (release) {

but I’m not sure how to apply this to my site to try it?? what does the _root.contents. refer to??

Thanks in advance.