I've got a new-ish Imac with Debian 2.2r3 on it (kernel 2.4.19-pre2). Everything's fine (X, mouse, etc...) but I can't work out how to change the screen geometry. I can set the mode correctly, what I'm trying to find out how to do is change the width of the screen in a paricular mode (because the Imac doesn't have manual controls to do it, eg: knobs or an embedded monitor tool). Anyone have any ideas? Nic