# What do I do if my screen is frozen?

On a Linux machine:

1. Make note of the name of the machine you are on.
3. ssh into the machine that is frozen
4. type

pkill -9 -u your_username

5. This should log you out and kill all the processes.

If all else fails,
Contact the Math Help Desk

If it is a Windows machine:

1. Hit CTRL-ALT-DEL
Choose Shutdown, then choose Restart.

# What do I do if my screen freezes up when viewing a pdf from mozilla?

It seems to be a bug with Mozilla that is causing screens to freeze.
pkill -9 -u your_username mozilla