Guitar Hero on Nokia 5800?

[Celie]

Hi
i got the Nokia (NYSE: NOK) 5800 Xpress Music today and i luurve it...but one thing i don't get.
It ahs guitar hero as an application on it which is reli cool but it won't let me use it. It says
'this game cannot run in portrait mode. Please switch your screen back to landscape mode and make sure your sensor setting is set to ON. '
Ok, so the sensor setting is on ON but I dont know how to get to landscape mode and it doesnt say in the little book helpy guide thing.
Thank you masses.
XX
yh i've done that and it doesnt work thanx anyways x