after Daily update Kubuntu 15.10 will not boot up

[Richard Barmann]

Yesterday I saw that I had 60 updates w/17 being security. I installed 
the updates as I usually do. When I rebooted it goes as far as the 
Kubuntu 15.10 and the four  little dots that work left to right as it 
loads. Then it goes to a blank screen and does not load. Was there 
something wrong with yesterdays update? Please Help and Thank You.
Dick Barmann