OK' It's better than rev 51, because it's booting, but ...

Instalation setup works fine (network selection, user name, time zone etc), but don't boot to desktop (black screen, mouse working - after about 1 minute - showing message: "Ubuntu is running on low graphic mode" :/

REVISION: 54
MICROSD: 16 GB
BOOTLOADER: pali's U-Boot

Selected in install script:
local firmware
No dist-upgrade
1GB fat, 4GB root, 1GB swap
n900 2.6.35 kernel

Any solution ? :/