7610 problem - can't switch off !

[klingklang]

My 7610 is permanently switched on, the on/off button appears to be ok as I can hear it clicking but someone has suggested reflashing to me. How do I go about this? :???:

[Dylf]

Hey... At first you can try to take the battery out of the phone... Hopefully you don't reboot your phone that often... I don't.

Dylf