Default Lock DEVIDE

Hello all:

Thanks for this great forum

My question is that when Im running TOMTOM 6 on my palm 750V everything goes perfect except that if I do not touch the screen during 15 minutes a security keyboard pop up and I can not see Tomtom screen any more....

Is there any way to desactivate this locking keyboard.... ( This keyboard and security feature was installed automatiaclly ones I activate my exchange email)

On the other hand, my device led is working while charging battery but not working while telephone is connected to the mobile operator network..... do you know why?