Originally Posted by cellneuron

Thanks for finding the 1% exception. I just tried to switch the hardware ringer switch to mute, then turn it back on. Now my ringer is always down to zero, no matter using hack or not. Damn, why should palm put that switch there? I don't want to dig the registry to find out the value again.

Have to restore my treo 750. Anyway, at least it shows phone weaver is innocent.

However, your solution won't give my ringer back. But you did find the reason. Kudo to you.