Want to help a friend with a desktop problem

[Joe Zeff]

On 08/07/2015 12:24 PM, jd1008 wrote:
>
> Creating another account and login in with that account, it works.
>

Does the new account also use Mate?

> So, something changed, that has disabled the cntrl-alt-f keys.

It sounds like something's remapped them, but I don't use Mate and 
wouldn't know what special programs or settings it has.  If you have 
more than one DE, try switching her first account to that and see what 
happens.