VS2008 Team Suite (DBPro) on x64

Ok, I'm at the end of my tether trying to make this work.

I finally decided to move to Vista x64 and all was going well, installed SQL 2005 Developer x64 SP2, VS 2008 Team Suite and TFC and checked a project I was working on out and I get this error trying to open*the DB pro projects in the solution

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Microsoft Visual Studio
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An error has occurred while establishing a connection to the server.* When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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OK** Cancel**
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I've checked that I have TCP, Named Pipes etc all enabled, I've turned the firewall off, I made sure remote connections are enabled on SQL, I've turned UAC of (you never know) and nothing fixes it.*

So I nstalled another machine and hit the same problem, so I went back to 32bit and followed the same steps and all worked.

I have no problems connecting via SQL Manager, or via the sever manager in VS, just DBPro projects.

Please someone out there tell me they know the answer to this! :s

Thanks,

Stephen.