hdd is irrelevent and not important to the issue any drive in the unit behaves the same way, and how can sleep mode possibly be affecting it?! The unit is simply powered on, and drive is there operation ready it's just the playon has decided to change it's internal drive mapping.

Yes you map a drive letter to a path, it's basic windows networking.
If you don't know how to do this, simply open up 'windows explorer' and select 'computer' your existing drives are displayed. Then (in vista at any rate) at the top select 'map network drive' and then put in drive letter and path to map, press ok and it's a drive attached to your pc.

You also never answered my question on the time issue.

I never mentioned http access, it's of no interest to me as I don't want to access it that way.
I simply want the unit to work properly how it did on all SDK 2.0 firmware builds.

Noticed the installation file "install.img" from both packages (Asian & European) are dated 9/17/2010. I wonder if this is the same version used for internal testing?! Does it mean that no changes/fixes made at all from the internal testers' feedback?

3) Widescreen movies still zoomed out to much flatter picture (Very large black Bars top and bottom). FW 4318 and earlier didn't have such large black bars.

Correct.

I remember someone claimed this version as unstable. How can A.C.Ryan release this version to the public before addressing the unstability issue?