Running .net 4 tests on remote files

Question

Can anyone explain this one to me, as Ive got a not ideal solution

1. Have a project in VS 2008 with MS unit tests in
2. Import the project to VS 2010
3. Store files in My documents folder which is redirected to a server over the LAN
4. Try to run tests, but no tests are found, and it comes up with a message no test are run as tests are disabled
5. When building the test project it says error trying to load the test dll, but gives the right path to the server location
6. I check to make sure the project, a winforms jobbie can run which it does
7. So I change to run the project on the local computer and everything works fine

Can you only run tests in VS 2010 projects locally?

Thanks