Twinview on a Nvidia card

Well, finally I got twinview configured for my Nvidia Geforce 2 Go in my notebook. I've connected a 21'' CRT. For preparing the papers for the Linux Audio Conference and the Linuxtag it's a great thing. I can finally have one Document on one screen and another one on the other. Thanks to a resolution of 1400x1050 on my notebook, I'll surely save a lot of time this way. Many thanks to Alexandre Tessier from the Yahoo group "linux-dell-laptops" who has politely posted an example configuration and some explaining words. Thanks a lot!