no top window panel visible in maximized mode using external monitor

[pools]

When i maximize kwin window, the top panel dissapears (it's there -> you can click on the minimize and exit buttons and so on, but it's not visible). Bug appears only on the external monitor (notebook lcd is turned off).

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: kde-window-manager 4:4.7.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sat Nov 12 13:03:47 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
SourcePackage: kde-workspace
UpgradeStatus: Upgraded to oneiric on 2011-09-24 (48 days ago)

[Harald Sitter (apachelogger)]

Hi there!

Thanks for reporting this bug! Your bug seems to be a problem with the KDE program itself, and not with our KDE packages. While we appreciate your issue, it would be better if it was tracked at https://bugs.kde.org, so that the KDE developers can deal with this speedily and have direct communication with you as the reporter for more effective debugging.

Thanks!