Oh and by the way,,, there is nothing wrong with the way I have the registrations loaded into the alert list (I am capable of typing in 20 or 30 registrations into a computer without splattering them with random spaces, or characters)
However just to prove the point,, I have had alerts off certain items in my list in the past... and then I have seen the same a/c on my screen (or known for a fact that it has been in and out of LHR or LGW - both of which I cover) and NOT had alerts off it on a different day