File <File> was checked out to <folder>, not to <folder>

This warning has the following cause and solution:

• The file you are checking in was checked out in a different folder.

  When dragging a file to check in, you must check it in from the folder where it was checked out. The file you dragged will not be checked in. If you want to check the file in from this folder, use the VSS Check In command from the SourceSafe menu.