On a recent Acer laptop (TravelMate 5620) running Vista I installed Microsoft Office 2007 and Outlook worked the first time, but after opening it a second time it gave me an error message, saying that "This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem." After numerous attempts to restart Office I either received this error message or it tried to re-install itself.