Doc,

Well I had zen cart up and running 100%. I later tried to start securing it, right now its completely in progress. I went to the tutorials and read the one about zen cart security https://www.zen-cart.com/tutorials/index.php?article=73 and I changed the admin folder name. At that point I could still log in (under the new admin folder name) but all the pages under Configuration inside the admin tool were blank. The view source showed blank too. So I read on the forums a lot of people had extra spaces and/or carriage returns after the ?> I checked and I did too, so I removed them in wordpad and sent them back up. Since that didnt seem to work, I changed the admin folder back to "admin" and the same problem, Configuration is hosed. The site itself doesn't seem to have any problems at all, its the admin tool that's causing grief. Even that works great except for any submenu under Configuration.

In the techsupp.php I just noticed the warning about the "Cannot send session cache limiter - headers already sent" and the "Cannot modify header information". That's when I found this post.