When Gnome Terminal is selected I am unable type in any text.
If I select Gedit the keyboard strokes are faithfully reproduced.
I have updated three systems, two on one computer, one of these from linux.com days before the 'release' and the other from rts-informatique.fr.
This machine is a two cylinder AMD 64 with Nvidia graphics. They both work normally.
The third machine, where the fault lies, is a MintBox updated from debian.lth.se. This again has a 2 cylinder AMD64 G-T56N with Radeon Graphics.
I have tried purging the Gnome Terminal software and reloading it, this had no effect.
I do not have a clue about how the keyboard output gets to the Gnome Terminal programme but I will be delighted to explore - under instruction.
I have installed Xfce4 terminal emulator meantime.