Ive heard the nVidia's TurboCache and ATI's HyperMemory is basically a ways of expanding youre graphics memory by digging into system RAM. at least i THINK thats what it is.
firstly, would this actually improve my BZII gameplay in anyway on a 128Mb card? what exactly is the point of it?
Secondly? how do you actually set the thing up, or is it automatic?
In IRC GreenHeart was talking about how he had SLI Ram so although he had over the 3 Gigs a 32 bit OS could use, his video card utilized the rest.
http://ati.amd.com/Technology/hypermemory.html
You can also set the amount of RAM used by adjusting the Video Aperture, if present in your CMOS.