NT & Network cards (2)

The problem is: With NT Server I'm not able to skip network card installation (how I could?), with NT Workstation I could. After installation, if I install network card, after rebooting System gives me an error, because it is not able to find the network (the system is not connected to a network). The only way that I found to not obtain an error every time I start NT is to remove each protocol (TCP/IP etc.) from network property. There's another way (more simple) to install a network card without errors?

With server you can`t , but you can choose a loop back adapter , when setup ask you for network adapter (select from list "Microsoft") . I think ther won't be any errors .

Does it show DHCP error ,thats no problem.

But if it sad something about network card or server .... , then there is a problem .
Couse :
Forgot to instal a service pack , after instalation.
or
Wrong drivers for your network card.
or
Interrupt conflict , ..

Thank for suggestion about NT server, I 'll try.
About workstation, it's a DHCP error, problem is that if I show a pc to someone that do not know nothing about NT, he'll say "Ah, an error, is not normal!". I would know if there's another way to bypass the problem. Thanks!

Disable DHCP , and use IP : 127.0.0.1 , a Loop back address.

Thanks, but I have another stupid question: what is a Subnet Mask and how I must use it? With 127.0.0.1 subnet 255.255.255.0 fails (I used 192.168.0.1 and all works perfectly!). Can someone suggest me a website rich of network/NT info? Thanks a lot!