Big problem with prop's menu

Hello, i’m French, so my english is very bad.

So, since a lot of day ago, when i put a value on a prop in WIRE catégorie (example: textscreen : TEST), i can’t close the menu ! I have press ENTER key for valid, but when i press, i can’t close the menu ! I have pressed all key of my keyboard and mouse, it’s don’t close :’(

I have delete Garry’s Mod and réinstall but same.
I have réinstall Windows 7 but same problem.

Thanks for help

Enter text, press enter then press q again. It’ll close the menu.

I have already press it … Don’t close

enter text press enter and then press q