LE AI Crashes on Start

Unit has worked well in recent past. Today on Start I get a warning of “Serious” problems and the program won’t load, must be shut down. Tried the usual reboot etc. no Joy. thoughts on resolution appreciated. :question:

Re install the latest elicenser.

Maybe this?
http://www.steinberg.net/forums/viewtopic.php?f=181&t=64230#p383398