I have an A5 graphics tablet. When connected, Linux recognises it, except that it seems to assume it's about A6 (or possibly it guessed the resolution wrong, or something). Meaning that it gets confused if I move too far away from the top left corner.

I assume this can be fixed by editing xorg.conf, but I haven't found any good guide for doing this. Any suggestions?

(And I apologise if this has been posted before, but I didn't find anything.)

Edit: I didn't think it mattered when I first posted, but it might: It's a Wacom Graphire 3, IIRC.

More editing: I've installed the drivers from here and done the xorg.conf edits on that page, but it's still the wrong size.

Yet more editing, months later: It's working now, for some reason.