NUnit "Project Base" vs. Resharper "Run tests from specified folder"?

In NUnit I've been specifying a "Project Base" path which allows NUnit to find my .config files in the C# Solution directory.

However, when I tried to run them under ReSharper, I set "Options->Tools->Unit Testing->Run Tests From->Specified Folder" the same way, but this seems to have no effect. I can see in FileMon that it's still looking in the DLL's directory (under the various /bin/Debug directories).

Is it possible to run this without the .config and the .dlls in the same directories?

Thanks,

-Mike