Hello and Good Morning

Im sorry to sound vague but hope somebody can help

I have a workbook that contains lots of macros, most of the code has been
donated as Im a bit of a novice €“ but getting better!

Problem I have is for some reason and I suspect its something within the
code, I am unable to use the right click on the mouse.
This is highly frustrating and now I wish to create a new macro linked to a
€˜box on a worksheet I cant right click to add the macro.

Anybody any ideas ?

Thanks in advance