After some use Visual Studio 2008 when opening a solution that is checked into Visual Studio Team Foundation will pop up a dialog saying:
Projects have recently been added to this solution. Do you want to get them from source control?
This happens every time the solution is loaded (even if no projects have been added). The only way I have found to remove this minor annoyance is to completely rebuild the SLN file.
Has anyone found a better/simpler way?