Go To Checkout Error - with Fast and Easy Checkout installed

Hi All.
Banging my head as I write this...:frusty:

I have been working on a new install of 1.3.8a for the last week or so. Thought I was almost ready to go live with it. I went in to make another test purchase and it throws an error. I place a product into my cart, then click "Go To Checkout". When doing this with FireFox, it gives a page load error and states, "Redirect Loop - Firefox has detected that the server is redirecting the request for this address in a way that will never complete.
The browser has stopped trying to retrieve the requested item. The site is redirecting the request in a way that will never complete.

The URL that is in the address bar at the time of the error is:
http://gothandcuffs.com/index.php?main_page=checkout&action=null

My site URL is: https://www.gothandcuffs.com.

Any and all help would be GREAT!!!

Thanks in advance!

Rick

can you provide php version that is installed on your server ? also this seems to be something to do with .htaccess ..

you can look up similar issue in following . .it might help ..

http://www.zen-cart.com/forum/showthread.php?t=38248

also had to create account on your site , under test .. you may remove that account.

My server is currently running PHP Version 5.2.8.
I have access to my PHP.ini so my .htaccess is pretty empty.

I'm reading thru the link you sent, thank you!

The only other thing I can think it could be, is that I downloaded and installed:
Easy Signup and Login 1.16b and
Fast and Easy Checkout for Zen 1.12a.

Maybe if no one has any ideas, I'll try removing those to see if they could be the culprit... But, I remember having a successful checkout after uploading the mods.

Thanks again for your help!!!

I got it fixed.
In my case, it had something to do with the module, "Fast and Easy Checkout".
Maybe I messed up the install, I'm not sure, but I removed it and my site is back up and working again.

Thanks for your help, Tony,

Rick