W00t! I have Aero Glass with the Toshiba M200 and the February CTP 5308 build of Vista. I downloaded the nVida driver found here
. I have a nVidia GForce Go 5200. Installing the driver in the “INF – Right Click” install method they outline did not work, nor did doing an Upgrade Driver on my video card in Device Manager. I had to select the video card, tell it to let me manually choose a driver and then tell it I had a disk and I would select the driver from it. I then browsed to the file I downloaded from nVidia and selected it. It then listed all of the drivers available in the download. Even though the website says my card is supported for Aero Glass, it is not listed in the resulting choices. I chose the GForce 5500 driver and crossed my fingers. Once I rebooted, viola! Aero Glass. I had one panicky moment as I launched Outlook, the screen went black and my cursor staid as an hourglass for at least 10 minutes. Finally I hit CTRL+ALT+DEL and my screen popped back! Phew . . . Surely not the recommended method for getting Aero Glass, but if you are not of the faint of heart, give it a try!