power manager, laptop lid locking bugs

[galen]

using power manager (screensaver is inactive)
AC settings
lock computer when lid is closed.
turn off = never

bug.
close lid.
open lid, should see password screen,
pw screen screen may show briefly then system goes to sleep.
have tap power button to awake system.
password screen may appear or a blank screen,
if blank screen,have to power button again to get password screen back up

laptop hp nc4400