How large disk support idehd ?

I buy WD 320GB IDE disk and try to install on NW 6.0 SP5.
I try last IDEATA and IDEHD files from

After loading ideata on logger screen I see that server detect my disk
(320 GB ATA) but after loading idehd no device appear.

In my oppinion idehd doesn't support large disk. Which capacity Novell can
managed ?

Lubomir Vogl