When I try to open Brain Fitness 2 I get a box that says "Windowa cannot find 'Activate.ex' make sure you typed the name correctly, and then try again. Search for file, click start button, and then click Search." I havedone all that and then uninstalled the program ane reinstalled. It ran find for about 4 sessions and then I got the same message from windows. I am very upset that I can't use the program. MP