(I'm sorry if this is assigned to the wrong component, this is the closest as
far as I know)

I'm using KDE 3.5 with FC5 on a laptop, and I've noticed that the battery
monitor in the notification area disappears after first use.  When I started FC5
for the first time or logged into a new account, it appeared, but disappeared
after the next reboot.  Enabling or disabling the 'Restore last session' option
doesn't change anything, and pressing the 'Start battery monitor' button in the
'Laptop Battery' section of the KDE control center doesn't help either.  What
does work, however, is disabling the battery monitor (with a checkbox in the
same section of the control center, I'm not in FC5 right now and don't remember
the name), pressing 'Apply', re-enabling it, and pressing 'Apply' again.  The
battery monitor appears, but it's gone again after the next reboot.

I'm using kdelibs-3.5.1-2.3 and kdebase-3.5.1-5.  GNOME's battery monitor works
fine, so I think it's a problem with the specific program instead of the kernel
or HAL.  Any information I left out?