Default to lower resolution on TV

Hi,

I have a netbook (Win XP) connected to an HD TV via VGA cable. I use the shortcut on the netbook (something like Fn + F8) to cycle between displays, but when I activate the TV, it automatically chooses the 1920x1080 and everything is way to small. Everytime I switch to the TV, I have to manually adjust it to 1280x720. I was wondering if there were a way to default the output to the lower resolution, or perhaps some one click shortcut that can do this for me.

Thanks.