Dolphin file/folder select, rename very slow when information panel open

Binary package hint: kdebase

Using kubuntu Karmic beta with latest updates, Dolphin work very slow when trying, for example, to rename a file if the information panel is open (F11 in Dolphin to open/close the panel).

I have to mention that I noticed this issue in one of the early alpha releases (I can't recall which one).

Steps to reproduce:
1. Open Dolphin.
2. Ensure the information panel is active by checking that there is a V in View->Panels->Information.
3. Try to rename a file and notice that the renaming takes time (or try to select a file, it also a bit slow).

I found some openSuse users on the web which also complained about this problem and their solution is to close the information panel.

This solution is not a real one, and this issue should be addressed by the developers.

ProblemType: Bug
Architecture: i386
Date: Mon Oct 19 00:05:49 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/dolphin
NonfreeKernelModules: nvidia
Package: dolphin 4:4.3.2-0ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-12.41-generic
SourcePackage: kdebase
Uname: Linux 2.6.31-12-generic i686