Admin not working properly

Hi,
Whenever I try to update anything like customer address or layout boxes, after clicking the update button I am brought back to Admin Home and the update did not take effect.

The most recent updates that I made were installing easy quick reorder by eazy-templates.com (a great purchase) and I allso changed my admin folder acording to the instructions given by http://www.zen-cart.com/wiki/index.php/Important_Site_Security_Recommendations

Please help it's quite urgent.

Thanks in advance.

nutmeg613:

Whenever I try to update anything like customer address or layout boxes, after clicking the update button I am brought back to Admin Home and the update did not take effect.
Did this ever function correctly?
If not, try reloading(FTP) the complete admin folder contents.
If it did then quit, backout any and all changes/add ons to get back to where it works then begin replacing things one at a time to see where & what breaks it.