[Novalug] graphical issues

[Julia Christianson]

I don't know if this is a KDE problem, a *buntu problem, or an X
problem, but I'm having pretty severe graphical issues:

(1) My xorg.conf file keeps getting overwritten with a very minimal
640x480 config, usually after a reboot although it also happened
once during a session, just after configuring a screen saver.  And
sometimes the xorg.conf file is unchanged over reboot but the video
mode gets set to something widescreen (my monitor is not).  And

(2) I'd like to be able to log out, so that others in the household
can have their own accounts on the machine, but whenever I do, the
screen displays something that looks like a chunk of ram with a
repeating pattern displaying in text mode, and keyboard and mouse
are nonfunctional, so it requires a hard reboot.

This is Kubuntu gutsy, updates up to date, fairly recent but not
cutting edge nvidia card, and viewsonic lcd display, but I've also
experienced symptom (1) with a CentOS install with an onboard
graphics chip & widescreen display (it might also have had (2) but I
didn't stay with it long enough to know).

Any suggestions appreciated.

-- Julia