Ethernet connectivity

many thanks to all of you, who develop and maintain this beautiful OS!
I set up Alpha2 in VB-OSE with Mandriva and it runs like a charm.
Unfortunately, I seem to be unable to connect to the internet with HAIKU.
My other guests in Virtual Box connect with no problem.
My network adapter is set to PCnet-FAST III (NAT) by default.
My cpu is AthlonX2 64 5000+

Could someone help me through this, please?

PCnet-FAST not supported. Change to Intel 1000 (NAT).

Thanks a lot for your fast response!
I really should have read that manual, you pointed to.