I just recently purchased a MacBook Air for myself to learn more about the operating system and how to use it, so my knowledge of how to configure things in it is pretty elementary, if non existant.
I have a problem I can't seem to find a suitable solution with google. On my install, I have 3 icons that appear as Question marks instead of their icons. Please see example image below.
Can anyone explain how I can resolve this, so that the Grammarly, Firefox and Skype icons appear as they should?
Please note: Including any screenshots with your comments if possible (that you think may be helpful) would be a real bonus for me and much appreciated at this stage of my learning curve ;-)