I am running Outlook 2011 as part of an Office For Mac program on a MacBookAir with OS X Yosemite 10.10.5. I am unable to access  Outlook. When I click on its icon on my desktop, the Outlook 2011 logo appears for approximately 5 seconds & then disappears, without having opened the actual program. I've also tried loading it from Finder, but the same thing happens. Does anyone have any ideas about this?