Mac clients unable to access resources at same time in mixed environment..why?

Some background:

I have 469 clients on a Windows 2003 Domain with Active Directory. 230 of which are old OS 9 mac stations. Now, from what I understand, my mac clients should be able to just sit on the network and behave normally, even if they do not have complete access to all my resources. They should still be able to access file shares that were created on my servers specifically for mac clients (Mac Shares) My mac clients are running OS 9.1 and 9.2. For the most part they do behave, except:

I have noticed that the mac clients work just fine up until I connect another apple client to the network and it requests to use the same resources. As soon as that happens, the connection to the shared drives close down and the internet connection ceases to work on the apple station I just finished setting up. If I try to go back and reconnect to the shared drives it then knocks of the other machine so it can have the connection back. Now, each machine is named a unique name and each machine has a unique IP address since they are getting their leases from the DHCP/DC server. I am completely stumped by this one and have no idea what could be causing this.

All macs in my domain are assigned to a different VLAN than the PC stations are. (10.X.10.X for PC's and 10.X.20.X for MAC's) I don't know if that makes any difference at all to a mac station but I thought I should include that just in case.
robTORRAsked:
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ParadiseITSCommented:
Hmm.. perplexing...

Your file share on your Win2k3 server... is it Apple or Windows?  Is DNS/DHCP handled by Windows servers or something else?  Are you running WINS?
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robTORRAuthor Commented:
I have done some research on this and haven't been able to find anything on my own. I will continue to research and plug away on this. If I find the answer I will post it here.
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robTORRAuthor Commented:
I found the problem.

Prior to the network being segmented for our new win2003 architecture, we had apple talk running on all of our mac stations and on our network. With the new equipment, the gurus of networking for our county decided to leave apple talk off. at the switch level. So problem solved for now. Thanks to all.
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robTORRAuthor Commented:
Moderator, if you could please close this one out for me that would be great.
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robTORRAuthor Commented:
My last answer was the solution so i am closing this out. Thanks to everyone for their help
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