>I am trying to follow the steps in the users guide (version 4.0.0) to create entity framework Entity objects. IN step 4 of Adding an Entity Data Model to Your Project, it says:
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>In the Solution Explorer, select the new .edmx file (it should already be selected). Go to the Properties panel and change the Custom Tool property from EntityModelCodeGenerator to mmEntityModelCodeGenerator (just add an "mm" prefix to the default value). This instructs Visual Studio to use MM .NET' s Entity Data Model code generator when generating entities from the diagram.
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>I have done this. If I right click on the edmx file, and click Run Custom Tool, it says that the mmEntityModelCodeGenerator could not be found. I tried uninstalling an re-installing MM, but no help.
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>ANy ideas?

If no one else answers, go to the expert -- Julie Lerman. She is synonymous with the EF.