Hello.
Got some problems here, when i run virtualbox, any virtual machine (install or run a created VM) both panels are freezing and not working right click nothing works except Menu and Virtualbox window (running vm window) cannot move or maximize with double click only buttons works.
Sincerely, Ubuntu 18.04 it was running much better than Ubuntu Mate 18.04, i choose Ubuntu Mate for better performance but this and other things is very annoying, i don’t know why.
Greetings and Thanks.