TV out automatic switching problem

Hi,

I have a problem with my G4-MX440 video card. If I start
Win98 WITHOUT display plugged, the driver (Nvidia
4.14.10.4523) switch to the TV out and shut down the display
out...

If I restart (At that point I'm happy to know how to clean
shutdown windows with the keyboard...) after having plugged
back the display, I still have the display out OFF!!! so no
display at all...
I have to restore a previous registry to enable the correct
output.

Is it possible to lock the display to the one I want to? I
share the display between a windows PC and a linux one, some
times I forgot to plug the display on the windows one, then
my wife comes and use it....some phone support to do....

Thanks, wally