I am having a problem saving a Project Plan created in MS Project 2010 (std) Version to MS Project 2007. I have saved it as MS Project 2007, however when I email it my group and they tried to open the Plan they get a message that the Project Plan has been saved in a newer Version, and they are not able to open it. Although when I click on “Save as” it clearly shows that the project plan is saved as 2007. Can some one help.