graphic-problems with H43 on mini6410

Hi
I have a mini6410 with the 4.3" display - On the frame is "H43" printed.
I try to run xubuntu from SD (images are from the DVD
Mini6410B-20111022.iso) but have some problems with the graphics.
The tux on the bootscreen, and the xfce-desktop have some pixel-problem.
(see Attachment)
With the preinstalled qtopia everything looks nice :)

I used the Linux-Kernel-configuration for the N43 because there was no one
called H43. I hoped they were compatible but obviously they are not :)

So, how can I solve that problem?

I have a very similar issue with Android:
http://www.friendlyarm.net/forum/topic/3912

Hm… Ok, I found a zImage for the h43 - thanks for that :)
( http://kanebebe.dip.jp/download/ARM11-6410-DVD/Linux/ )

But I decided to go other ways, because xubuntu9 sucks and is far too old.
I hope the linux-source-package is also updated so that I can build my own
one. But the date (20111212) looks good :)