I've noticed a lot of people having problems with admin login. So I figured I list of solutions would be helpful. If you've found a solutions to your problem please post it. I'll start with mine.
My Cart Worked fine until I changed my SSL address. This caused my admin login page to simply refresh after loging in. (Yes I updated my config file).
What worked for me was simply reuploading my entire admin directory, overwriting all files. Afterwards I changed the configure.php file by hand. (i.e. not reinstalling Zen Cart).
Works fine for me now



