Perhaps the installation is corrupted. Has it every worked for you. If so, try a repair on it - under help_detect and repair.
If you cannot get that far, then go into add/remove progs and try a repair from there (instead of uninstall).
This thread is now locked and can not be replied to.
Nintendo Switch review: Hands-on with the intuitive modular console and its disappointing games…
1995-2015: How technology has changed the world in 20 years
Method Studios' title sequence for BBC series Taboo is truly unsettling
Best Pages for iOS tips | How to use Pages for iPad & iPhone: 6 simple tips to get more out of…