Connecting a Windows XP Professional PC to a Windows Server

Hi, I have recently begun studying for my first mcp. I am doing 70-290 and am having some trouble connecting my xp pro machine to the windows 2003 domain. I have physically connected both machines using a crossover cable and have verified that the connection works fine. You can map a network drive and see shared folders etc. You can ping each other.
However when I try to add the xp pro machine to the windows 2003 domain it wont let me. I have tried adding a computer in server 2003 with the IP address and when you try viewing shared folders etc you get error messages like "Access Denied". I think there must be some configuration that needs to be done on both sides to make this work but I am not sure what steps need to be taken.
Any help much appreciated.
However when I try to add the xp pro machine to the windows 2003 domain it wont let me. I have tried adding a computer in server 2003 with the IP address and when you try viewing shared folders etc you get error messages like "Access Denied". I think there must be some configuration that needs to be done on both sides to make this work but I am not sure what steps need to be taken.
Any help much appreciated.
Comments
double click TCP/IP, choose use the following DNS server addresses and type the ip address of your server under the preferred DNS server.
see these articles for more info.
http://www.petri.co.il/requirements_when_joining_a_domain.htm
http://www.windowsnetworking.com/j_helmig/wxpjoind.htm
http://www.experts-exchange.com/Networking/Microsoft_Network/Q_20890765.html
Thanks Again!!
i'd suggest you read this to make sure you get everything right.
This is just a thought.
NRH, TX