I am trying to get to grips with my first PPC (an iPAQ 4700), and have a question about the on|off button

ops: and the number of pushes required to go from fully off to fully on (and vice versa) when used on battery.
There seems to be 3 states, namely:
1. Off/standby where screen is completely blank and buttons disabled
2. Screen on minimum brightness
3. Screen on standard brightness
To switch it on, I have to push On/Off button twice. Once to go from standby/off to minimum brightness, and then once more to actually see the screen.
To switch it off, I have to push the On|Off button once then have to wait until it times out and goes into standby mode. In the meantime the buttons are still active, which causes problems if it is in my pocket.
I have been through the various settings and can't seem to avoid the intermediate minimum brightness stage when switching On or Off. Is that standard functionality, or have I missed a setting somewhere?
Just a minor nuisance in a great unit.