I managed to fix (via workaround) for this problem by installing gutsy and then installing "Envy".
Envy is not core ubuntu software it is written by some italian guy but the code needs to be included Ubuntu as it solves a lot of monitor configuration problems. -- Xorg resolution falling back to 640x480 and/or 800x600 when h/v freqs incorrect https://bugs.launchpad.net/bugs/3731 You received this bug notification because you are a member of Kubuntu Team, which is a subscriber of a duplicate bug. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs