Vista: Dual Screens

Why the HECK can’t Vista remember the position of my dual screens?
I setup the laptop display on the right, and the external monitor on the left (like the phyiscal locations). I go away (or just lock the computer) and when I unlock it, they are back to being reversed! I have to go into the display settings and change it EVERY TIME! ANNOYING!

Or is this a driver issue?