Enable NV Cache

Hello,

I have a new Lenovo Thinkpad T61 with Intel Turbo Boost memory. I
have enabled "readydrive" and "Readyboost" in the Intel Turbo Boost
memory control panel. However, when I look at the hardware settings
for my hard drive, in the NV Cache Tab I get this message:

"This device has 387 MB of NV (non volatile) cache and can help
improve system performance. If using this disk as a Hybrid Hard Disc
is enabled, the disk can provide power savings and optimize the boot
and resume times of the system. The use of this disk as a Hybrid Hard
Disk can be turned on or off by the group policy administrators."

So, my questions are:

(1) If I've turned on Readyboost and Readydrive, am I getting the
advantage of that 387MB NV Cache, despite this cryptic message? Is
there a way to know if it is activated?

(2) If not, what are 'group policy administrators' and how do I change
that setting. I figured that I am the group policy administrator as
it's my laptop. But I couldn't find anything either on the web or in
the Administrative Tools program.

Any sugestions would be appreciated.

Chris Collins