A QFE for Visual Studio 2010 testing tools, which fixes some important issues faced by customers, is now available.
The full list of issues fixed by this QFE can be found in this article and you can download this patch from MSConnect. Note that Service Pack 1 (Visual Studio 2010 SP1 or Team Foundation Server 2010 SP1) is a pre-requisite for installing this patch.
Here is a summary of the list of issues fixed by the QFE, to help you decide whether you should apply the QFE:
In this scenario, Test Runner may crash, and then you may receive the following error message:
In this scenario, the unit test does not start as expected after the web services runs.