At the Kellogg Biological Station we upgraded several groups of machines from Office 2003 to Office 2007 shortly after users had a half day course on 2007. The upgrade was driven by the fact that users were receiving many files in Office 2007 format, and would sometimes have problems opening them. We installed from a network share and took advantage of a .MSP file to customize the installation (created using setup.exe /admin), and we took advantage of the fact that you can put .MSP files from Microsoft Office security updates and service packs in the Updates folder. .MSP files in the Updates folder will be applied automatically by setup.exe after the initial installation is completed. We also had a file save problem, but it was folder specific. The problem was do to a slight change in behavior between Word-Excel 2003 and Word-Excel 2007 when saving files. In 2003, if you saved a file to a folder where you did not have delete access, the save succeeded, but a hidden temporary file was left behind. In 2007, if you attempted to save a file to a folder where you did not have delete access, the save would fail with an error message that was not very useful. Giving the user delete access to the folder resolved the problem and it allowed Word to delete the temporary files instead of leaving them behind. I tried to find a way to configure Word and Excel to put the document specific temporary files in a different location, but I was unsuccessful. -Stefan