Code coverage on TFS 2010 Beta 2

Question

When trying to get TFS 2010 to run tests with codecoverage we get the error in the MSTest.exe output stated below.

When running locally in VS 2010 Beta 2 the code coverage runs just fine.

Have any of you guys experienced this and/or know how to fix it?

Thanks in advance

/Klaus

Partial output from MSTest.exe:

Summary
-------
Test Run Error.
  Not Executed  261
  -----------------
  Total         261
Results file:  F:\Builds\3\AdvisDevelopment\AdvisAccessServer\TestResults\kpe_ADVDKAPP01 2009-11-25 15_33_57_Any CPU_Release.trx
Test Settings: BuildServer
Run has the following issue(s):
Value cannot be null.
Parameter name: Waithandle array may not be empty.