6600 doesnt hangup due to lock..

I have my phone set to lock quite quickly so that I can put it down in work,
and other cant pick it up and mess about on it.

But it annoys me when I'm using the phone in a voice call, and at the end, I
go to hang up the call, but cant cos the keyboard is locked.

So I first have to unlock the phone, then hang-up!!


Does anyone else get this, isn't there a way so it wont lock when in a
call???

Thanks