Knotes overlap some notes when you reboot the computer (don't lock position)

I have 4 notes on the right side of the window... One below of each one.

When I shutdown and power-on my computer, I see only 3 notes.

BUT one note is overlapped of other.

IMHO, knotes must LOCK the notes positions.

My OS is: Kubuntu 12.04

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: knotes 4:4.8.1a-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Sat Mar 17 10:57:37 2012
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120228.1)
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: kdepim
UpgradeStatus: No upgrade log present (probably fresh install)