I'm sorry, I didn't .
I've just finished to downgrade my notebook to XP from Vista. I've installed Vista 10 month later on Dual Core Duo Notebook with 2Gb RAM and Nvidia Quadro NVS and after a boring search of driver and program i have a good function machine.
1 week later I've installed Vista Sp1 and I haven't seen the expected benefits and the UAC control speed down opening program process.
So, I'm a coder guy, I'm not interested in grafic window movement or enhanced side-bar and finally I've decide to reinstall XP.
Ok Ok, after reinstall everything run so faster than a road runner but ..... next month let you know how it goes :-)