No neviem, ci to pomoze Tebe, ale mne pri instalacii verzie 7.04 na Asus A6Je(Ati1450 1200x800) vypisovalo pri starte Xwindows: "Screen(s) found, but none have a usable configuration. Fatal server error: no screens found" a riesenie som nasiel niekde na webe:
sudo dpkg-reconfigure xserver-xorg
sudo /etc/init.d/gdm restart