[GLLUG] Updating

[Chris Bell]

Hello,
I have a computer running KDE on Debian Stretch that will usually not allow 
aptitude to "u" (update the list of available packages) because /var/lib/apt/
lists/lock is open. I can delete the lock and then "u", sometimes finding that 
lists were not already up to date. It is one of three computers running Apt-
Cacher NG which could be locking the lists, two with KDE while the third is 
not running a desktop, but only one shows the problem.
Any suggestions why? Thanks.
-- 
Chris Bell
Website http://chrisbell.org.uk