Vista - ReadyBoost eats up memory on my flash-drive?

I have a Kingston Voyager 2GB flash-drive which I use for ReadyBoost.
Problem is that memory keep disappearing from the drive. I initially
set ReadyBoost to use 1.5GB to keep me happy and smiling with my very
improved computer (do I sense sarcasm?). Anyway, it only uses approx
800MB now and still the drive is completely full.. There is no other
files on the drive so I guess the remaining 1.2GB have disappeared?
Ive checked for hidden files and there is none.

This happened once before and I solved it then by re-formatting the
drive and start over with ReadyBoost.. But since it now have happened
again I guess thats no permanent solution.

Any thoughts?

Isn't that the purpose of ReadyBoost?

Following from the Vista Resource Kit:

ReadyBoost files are encrypted and not accessible other than through
Superfetch.

Performance increase depends primarily on two factors - the Windows
Experience Index of the HD - HD with an index of 5 or better will not
benefit - usually laptops have a lower index and do benefit.

Other factor is type of disk read - sequential reads are faster via the HD
than ReadyBoost - ReadyBoost non-sequential reads improve prformance.


"methosmen" <morten.thommesen@gmail.com> wrote in message
news:1178472457.111690.258440@n76g2000hsh.googlegroups.com...
>I have a Kingston Voyager 2GB flash-drive which I use for ReadyBoost.
> Problem is that memory keep disappearing from the drive. I initially
> set ReadyBoost to use 1.5GB to keep me happy and smiling with my very
> improved computer (do I sense sarcasm?). Anyway, it only uses approx
> 800MB now and still the drive is completely full.. There is no other
> files on the drive so I guess the remaining 1.2GB have disappeared?
> Ive checked for hidden files and there is none.
>
> This happened once before and I solved it then by re-formatting the
> drive and start over with ReadyBoost.. But since it now have happened
> again I guess thats no permanent solution.
>
> Any thoughts?
>