Vista bug: iconified folders use wrong icon to represent "current folder"

I've found a bug in Vista (all versions) but I don't know where to post it
in the hope for a hotfix.... here is it in short:

iconified floders on the taskbar use a wrong icon for the "current folder":
http://g.imagehost.org/0025/Immagine_5.jpg instead of using the correct
folder image you're currently in as it should (example:
http://f.imagehost.org/0269/Immagine.jpg ). Here is an example shot showing
the problem: http://f.imagehost.org/0502/Immagine.jpg
This has been reported and confirmed by all peolple I know with very
different HW and Vista versions. It doesn't matter, after a while (usually
after furious copy from<->to USB flashdrives) Vista won't show the correct
images anymore (as it did after in the beginning after a fresh install) and
will always use that ugly yellow one with a green little arrow
http://g.imagehost.org/0025/Immagine_5.jpg for all kind of folders!
It's just a minor cosmetical bug but I'd like to be fixed by an hotfix soon
beacuse even after SP2 nothing changed. instead of using the correct folder
image you're currently in as it should (example:
http://f.imagehost.org/0269/Immagine.jpg ). Here is an example shot showing
the problem: http://f.imagehost.org/0502/Immagine.jpg
This has been reported and confirmed by all peolple I know with very
different HW and Vista versions. It doesn't matter, after a while (usually
after furious copy from<->to USB flashdrives) Vista won't show the correct
images anymore (as it did after in the beginning after a fresh install) and
will always use the ugly yellow one with a green little arrow for all kind
of folders!
It's just a minor cosmetical bug but I'd like to be fixed by an hotfix soon
beacuse even after SP2 nothing changed.

--
Luca