I have just copied various worksheets into a new workbook for the new tax year (UK). I have discovered that my formulas no longer automatically recalculate when I enter figures into the relevant cells. Now I have to select the cell with the function and then click the green tick in the funtion bar to initiate a recalculation. How do I convince Excel to calculate as soon as the data is entered as it has always done in the past? Clicking on the task bar by 'calculate' bring up a dialogue box with various arithmetical funtions to chose from as well as 'none', use of this box affects not the pesky little 'calculate'.The PC in question is not connected to the Net and is running fine.Any suggestions would be gratefully recieved. Thanks in anticipation. Pete White