Lost my wifi after update om ll2.0

[engineer]

I am very frustrated at the moment.  It's running S L O W, and when I shut the system down the machine will not cut off, I have to manually shut her down..  ARGGG!  I think I may have to re-install Linux and start from scratch.
Funny, it was running good before I downloaded the upgrades.. ?

I need a break, I am heading to my martial arts class to let off some steam.

engineer