Hello Joerg,

  JN> I don't think that this was the problem as my current
    > two drives on that board seem to use 48 bit
    > addressing:

I noticed that and it struck me as odd because neither drive
is large enough to require LBA48.  Perhaps people at Western
Digital and Seagate made policy decisions to standardize on
LBA48 for their ATA drives.

- Andy Ball.