Gray Box

[Blackdog_kt]

Originally Posted by JG14_Jagr

Press control and right click on it to highlight it then select CLOSE with a right click..

Its a text box since the update reset some of your properties.. its one of the most misunderstood features in the game actually

What he said but with a minor correction: actually it's alt-click to highlight it (at least on default settings, i don't know if this function can even be remapped though), then right click for the pop-up menu and left click on close.
Try this again and see if it does the trick.