Re: X on laptop going nuts

["a.list.address@gmail.com" <a.list.address@gmail.com>]

When this happens, can you press Ctrl+Alt+F1/F2/etc and switch to
another terminal?

Can you press Ctrl+Alt+Backspace and restart X?

Have you checked /var/log/XFree86.log.0?  (might be several)

>From where did you install the nVidia drivers?

When did the problem start happening?

Have you tried backing up your X config and using either
dpkg-reconfigure or apt-get --reinstall on X?

Have you considered upgrading to a newer kernel?