my settings window is frozen. what can I do?

Try closing the Settings app completely and see if it works when you re-open it : from the home screen (i.e. not with Settings 'open' on-screen) double-click the home button to bring up the taskbar, then press and hold any of the apps on the taskbar for a couple of seconds or so until they start shaking, then press the '-' in the top left of the Settings app to close it, and touch any part of the screen above the taskbar so as to stop the shaking and close the taskbar.

If that doesn't work then you could try a reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.

try restarting it by holding down the home and hold button at the same time untill the screen goes black then press the home button untill the apple logo shows up (you will not loose any data) 🙂

Thankyou so much. Just bought the new ipad and this solved my problem. 🙂

Thanks for your advise, it worked great.