Graphical corruption in the address bar in Konqueror

[KikitheKing]

I am using Kubuntu Jaunty up to date (KDE 4.2.1).
If i double click on the address bar of Konqueror and leave the cursor on it, there is a graphical corruption: all the address bar become black. Remove the mouse cursor from the address bar and the graphical corruption will stay on the blinking cursor.

The bug about the blinking cursor can be reproduce on each address bar available on each QT software

I have a Samsung NC10 with Intel GM945 graphical chipset

I can't take some screemshots because if i move the cursor, the bug disappear, so i have only photos with my mobile...

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)

sudo apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installé : 2:2.6.1-1ubuntu4
  Candidat : 2:2.6.1-1ubuntu4
 Table de version :
 *** 2:2.6.1-1ubuntu4 0
        500 http://fr.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status