G4U -
http://www.feyrer.de/g4u/
Right. OS v4 upgrade will in some cases upgrade the bios. But not the hardware, the version is related to the actual hardware version.
The v4.0.830 doesnt seem to, but it might have done.
You can upgrade yours to 3.0.830, which most people seem to have upgraded from and had access.
If you look back through the posts there are 2 ftp servers that have the files on.
I can give you some more info later.. I need to read over your post in more detail first