Force Quit

Do your applications hang while multitasking in the GNOME desktop environment.
It might become very frustrating at times.In such cases instead of rebooting you can use the FORCE QUIT button from your GNOME Panel.
Right click on a panel,then on Add To Panel and select Force Quit.
To close a frozen application click on the force quit button and then on the window to be closed or press escape to cancel.
Have this button permanently on your Gnome panel;it would prove to be very useful in those freezing cases.