I bought a used 2006 Imc 24" with 10.7.5 ios. It's great except it randomly displays a page with a bunch of different icons - translate, dictionary, weather, airlines, clock, calculator etc. The 'escape' button takes me back to the page I was on, but it's annoying to have that page pop up all the time. I suspect they are the previous owner's interests. How to I stop that page from popping up?