Hello again to everyone!

I have a problem with my main form of a project.

In this form i have a MenuStrip control. Few minutes ago i have added a new item to the MenuStrip. I the Designer it shows me the new item just added to the MenuStrip. When i run the project (F5) it does not apper the new item to the MenuStrip.

What can i do in this case ? There are some temporary files that must be deleted or what shold i do ?

Thanks in advice!