Submitted another bug to Microsoft, this time regarding the fact that you cannot edit a SharePoint document opened from a work item in the VS IDE. After I submitted a screen capture of the bug yesterday Microsoft has confirmed that this is a bug in VS ALM 2010. The good news is that they will fix this in VS vNext where “we now launch the external browser rather than the internal VS browser when opening hyperlinks”. Until vNext arrives we will have to use work arounds. Fortunately there are several of those. Because the source of the problem is the VS internal browser opening the document in any other way you can think of does not cause this bug to appear.