First, I'm rather new and still green in zen cart so be gentle...

I'm trying to setup MP3 files for download. I've been thru all the steps to add attributes and everything else that i can find. everything looks good in the store. i can select my download attribute radio button. it takes me to the payment page and that works, (actually I'm using a coupon code for 100% off but it still takes me all the way to the confirm purchase page). i confirm my purchase, then i get the problem. "Server not found". Not a 403 error, just "Server Not Found".

I'm using download by redirect and i can see the file in /pub with the correct permissions so i know its getting there. I'm thinking it's on the server side since this is a server generated error but where? I'm sure somebody out there has hit this. I'm also hosted on Godaddy Linux cPanel.
the URL it's redirecting to is https://pub/.blablabla/########_A.mp3.

so is it the server side or do i have something amiss in my configure.php file? and if it is the server side, what do i need to look at?

Thanks Yall