We have a lot of mac users and we have come across an issue. Our users have created a data table in excel and have linked those to various charts in a powerpoint presentation. While the files are both open and you are updating the totals of the charts, it works like it should. After closing the documents (saving of course) and then making further changes to the excel sheet, when you open the powerpoint back up, the changes are not reflected in the charts until you manually go through and update each chart. This is amazingly time consuming on something that works well when used in windows. Does anyone know how to make this work or is there a third party app that would make this possible. Any help will be appreciated.