I have a user (the Finance Manager) who reports that when she opens Excel spreadsheets (especially the budget spreadsheet), sometimes (actually most of the time) her calculations will change – she can watch this happen. If she works on another computer, the error does not occur. She is running a Compaq Deskpro 450, 128 MB RAM, Windows NT 4.0, Service Pack 6.0a, Office 2000 with SR-1 and SR-2. I have deleted “excel.xlb” in case the problem was in the user preferences in Excel. She has no problemwith any other application.