Zen Cart 1.3.8a New week old

Hello Yall Well the problem Im having is I cant ad new categories, I'll make them and click the button it just sends me back to my admin CP section? I did ad the patch yesterday and I notice after I could make new categories. Not knowing if the patch did it or not. I also play with the admin rename and couldn't get that to work and put it back to its original state. And im a Nooby. I've been working a Zen Cart for over 3 years and always come to road blocks and get burned out. Thanks For Lookin and Special thanks t anybody that can help. -Larry