QTPro export for web - reference file not playing .m4v

An interesting problem that I haven't been able to reconcile through my hosting company so I thought I would post here. I exported a video clip using QT Pro 7.6.4, export for web and uploaded the entire directory and tested for playback on my iPhone 3G 3.1.2:

http://propeller-group.com/Hypnotist/ReadMe.html
(iPhone playback doesn't work and it does not even load the poster image - but desktop playback does work perfectly.)

Then I proceeded to upload the same directory to another site to test for playback:
http://mattlucero.com/Hypnotist/ReadMe.html
(both iPhone and desktop playback methods work perfectly)

So then I proceed to see if the individual files are even playing back on the server that wasn't loading the video on my iPhone:
http://propeller-group.com/Hypnotist/Hypnotist-iPhone.m4v
(video plays back fine on the iPhone when hit directly)

This leads me to believe it is an html/scripting error of some kind? But this is the exact same html file generated from QT that has been uploaded to both servers. I have tried using the full URL for the .mov file to no avail. Why would it work on one server and not on another? Is there possibly some issues with the server not being able to interpret the reference file correctly? Or a javascript/server type error? Or is there something else I am missing? I have tried configuring MIME types using a .htaccess file, but I am not sure if this is even the issue as I am able to play back the video fine when hit directly.

Any help would be greatly appreciated.
Thanks everyone...