update-manager --no-focus-on-map ??

[rikona]

(1) In htop, I'm getting quite a few instances of "update-manager
--no-focus-on-map". They seem to build up over time and, according to
top, are using up memory [ ~5% each] -- and I eventually seem to get
memory problems. (2) Also over time I seem to lose the update manager
GUI - it shows as a running icon with alt-tab, but selecting it gives
me nothing.

How can I fix 1 & 2 re the update mgr? Are 1& 2 related?
  
Thanks,

  rikona