the keyboard is working properly now.
thanks for the interest.
the most interesting thing is that i did what i had already done before, and hadn't worked at all.
i had two languages set on my keyboard: American English (main) and Canadian English. i added a 3rd language, British English, and set it as the main language, but it didn't work.
then i removed all the languages, except the Canadian English and the problem disappeared.
it's far better when things work properly.
thanks a lot.