Ship in a Bottle 1024x768 32bit Graphics Quality Low (SW setting fast) 20.14 sec for 50 iterations Graphics Quality High 26.95 sec for 50 iterations (SW setting slow) This was on a fresh install of XP. After downloading all the updates and hotfixes from MicroSoft times dropped by a second or two. AMD64FX 2.6GHz PNY Verto5200 GeForce 2GB PC2700 3GB switch enabled. XP Pro SP1a Yes, the 3GB switch works. I have a SW benchmark with 3 features that will run a system out of memory using SW. I got a solid 1.5GB of ram used. Didn't want to stay around for the next level which would have approached 3GB.