Thanks again for your assistance.
I followed all of your steps, but am not clear on step number 9.
After restart, I pressed alt+shift and named a folder TA-MR3, but I'm not sure if it "temporarily changed my keyboard layout to Greek".
How can I tell? It didn't display the folder name as TA-MP3, it's still TA-MR3.
Would you be so kind as to assist me with this, please?
thank you again.