' Go to '............6610i

Greetings all. Some help please. I have a Nokia 6610i. My right selection
key is set to 'Go to'. Suddenly when pressed my 'phone turns off. I can turn
it back on and all is well until the key is pressed again. It must be a
setting, but I can't find it. any help in curing the problem will be
appreciated. Thanks.

John.