Vga switching script.

Hello!
I've been on the list for a few months, just lurking, and have yet to
attend any meetings.

I do have a question for you now though. Does it matter which runlevel
modprobe, ldconfig, or update-alternatives are called at on a Debian
system? I recently put together an init script which shifts the Xorg.conf
files and Glx defaults for my netbook depending on which of two video cards
the system boots with. I'm relatively new to this sort of thing, and the
"deeper" aspects of a Linux system in general, so any help would be much
appreciated.
Thanks!
-Chris