Categories frustiration with wordpress blogs

Hello, I'm having problems with all my wordpress blogs of adding categories. I try adding categories when i submit new post but nothing works. On this site I was only able to add one "technology" category. Kindly help me this its so frustration and a pain in the tail.

 

Try adding categories when you are writing a new post (in the Categories menu on the right). Doesn't it work?
Are you getting error messages? I need some more info...

 

I try adding them both way and don't get any errors.

 

Did you install any plugins lately which could interact ?

 

I also had this error, I tryed adding categories and they added from the backend but when you go to the blog you can't see them?

 

Did you put any posts in these categories?
When a category has 0 posts, it doesn't show up (IMO).

 

Oh that may be the solution, thanks

 

I deactived all the plugin and still not working on the front and backend?

 

Well, if you want, I can login and have a look.
You'll be able to change the password later.
PM me.

 

When you do not have a post assigned to a particular category, the category won't show up in the blog.

If that isn't the case, what is the version of WP that you are using ?

 

Great I sent you the log-in information. I deleted the word press script and added a fresh script. Hope you find the problem.

No, that is not the case. I use the 2.2 version.

 

I found the solution on the wordpress forum. This is it below:

i got a solution
the problems is due to a conflict with the browser
disable javascripts in browser and try again
it will solve the problem

Work like a charm but now my yahoo email is not working.

 

but the blog categories are ok, right?