I recently reformatted my hard drive. When I re-installed Office 2007, I was unable to run a Workbook that has a Macro in it. First, I went to Add-ins and added the Solveradd-in. When I opened the workbook, I enabled Macros. However, all I get is a maessage saying that the MVB did not compile. I know there are some things you have to do to solve this, but I cannot remember the procedure I went thru 2 years ago to get this to work. Does anyone know what steps I must take?