I have experienced disappearing Mate Menu Button. I could solve the problem using solution on this page.
1. Press Alt-F2. And you will get following window.
2. Type in following command, click run and you will get a terminal console.
3. Type in following command and press enter.
$ mate-panel --reset
That’s it. Enjoy!
I have installed Linux Mint LMDE on a PC with 2 LAN ports and a WLAN card. And I realized that there is no file “70-persistent-net.rules” in directory “/etc/udev/rules.d”. This file is important for keeping the same name of network adapters across boots. After googling for a while, I have found the solution on this page.
Basically what I have done was executing this command:
$ sudo udevadm trigger --action=add