Server 2008 R2 - The master browser has received a server announcement

recently setup a fresh new Server 2008 R2 domain controller.  This is the only DC and only server on the network.  I have 11 XP Pro clients joined to this domain.  Two of the clients continue to bother me with the following event:

Log: System
Type: Error
Event: 8003
Time: 12:34:23 pm 4-Apr-10 UTC
Source: bowser
Category: None
Username: N/A
Computer: DERMSERVER.derm.local
Description: The master browser has received a server announcement from the computer DERMMOHS2 that believes that it is the master browser for the domain on transport NetBT_Tcpip_{9F8B8496-2426-4AC2-B2BA-4AA21602EAB6}. The master browser is stopping or an election is being forced.

Help - It's becoming very annoying.  Everything is working as expected, just constantly getting these errors.  Thanks.
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Scott AndersonPrincipal Support EngineerCommented:
This should be a quick and easy...
Just go to the two systems that are causing the errors and disable "Computer Browser" service.  If they still fling errors, just follow step #6 here:

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Scott AndersonPrincipal Support EngineerCommented:
Here's the background on the Computer Browser Service..
Darius GhassemCommented:
Don't stop the computer browser service you need to disable this setting the registry.

Disable Master Browser in XP, 9X, W2k:
Change master browser in w2k or XP:
Go to Program files, Admin tools, services then in the right panel right click on computer browser and right click go to properties then from the startup list select Disabled. Or type regedt32, and scroll to this key change value to False
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters IsDomainMaster=FALSE

Change master browser in 9X:
From network neighborhood properties select File & print sharing, select and click properties then select "Master Browser" from the right list and choose disabled from the left list.,%209X,%20W2k:
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Windows Server 2008

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