laptop running LL3.8 behaving unusually

[Artim]

So my follow up question about updates is:
Once I install Ll3.8 on an older laptop do I do the “full update” via the Welcome screen as per the instructions on initially installing OR should I simply go to the mint update manager for LL and electively choose the level 1,2,3 updates?

I believe it's completely safe (now that some buggy earlier updates have been fixed) to fully update 3.8 from the Welcome screen, and thereafter use the Mint updater adapted for Linux Lite.

DISCLAIMER:  This is not an official or developer-approved method for updating Linux Lite.  It's an unapproved alternative adapted for Linux Lite from Linux Mint's updater, and provided because upstream updates from Ubuntu are known to include dangerous, untested, and even Beta software that could brick a perfectly good system and frustrate new users who have not learned how to selectively update Linux Lite.