Hi all. Apologies if this has already been covered. Bought my daughter a 3DS that worked fine for a day. Afterwards it won't respond when the screen is touched, either that or the icons zoom off left or right on the home screen. In addition the buttons don't work. The only change we made was to go online and update the software. Any suggestions would be gratefully received.

Woo, doesn't sound so serious.
If the touch screen doesn't respond it may need re-aligning, or calibration. Turn off the Nintendo 3DS system, then press and hold the buttons 'L, R, and X' then while holding the 3 buttons, press the power button (you may need 2 people to do this). Then, instead of turning on like normal, the calibration screen will come up. Follow the instructions on screen and it may work again.
How old is the person you bought the system for?

REMEMBER- 'A' IS TO ACCEPT, 'B' IS FOR CANCEL.

Thanks. Will give it a try. She's 13.