"Boot-up" screen resolution

[MR ZenWiz]

My laptop that now works nicely with the screen and DVDs still has a
really annoying "feature" - it insists on coming up at 1920x1200
screen resolution until I log in, whereupon it changes to my setting
(1920x1080) and the screen noise goes away.

Is there a way to set the "boot-up" resolution to the correct value?

There isn't such a thing in the boot PROM, and I haven't seen any
setting like that in the NVidia X configurator.