Impossible to write in the boxes of my table

Hello

I have a drawing with several holes. When I make a drilling table, I can't write anything in the boxes. I double-click in the box where I want to write an Ø but impossible.  I restarted SolidWokrs 2018, my PC but without success. Before on SolidWorks 2016, I never have this problem. My colleagues have the 2018 and have no worries.

Has this ever happened to anyone?

Thank you.