Strange Flash Occurence

Forgive me, as I’m still somewhat of an intermediate beginner with flash, if this is an issue that you’ve heard of before, but I have not.

I have a website. You can see that website both by typing in http://thewebsite.com or http://www.thewebsite.com.
(not REALLY my website…I’m just using examples here)

This website has a flash intro that at the very end enables the user to either choose to go to the html version of my site or the flash version, each option represented by a button.

The strange thing is that if I’m on the http://thewebsite.com URL of my site, everything works ok there. However, if I’m on the version with the “www” added into the URL, those buttons don’t work. You still get the little “finger” indicator, but when you press, nothing happens.

Is this as strange as I think it is or is it a fairly common problem?