I have recently upgraded my Excel from 2000 to 2003 along with a much nicer PC and XP. I have some rather large workbooks with many calculations in them and I am having a problem where whenever I type something in a cell and hit enter, I have to wait until the auto calculation completes before I can enter something in the next cell. I used to be able to continue to type in data, hit enter, type in the next cell, hit enter.. etc. Now I have to wait approx 3- seconds before I can type again watching the auto calculation in the status bar complete. Is there another setting I am misssing. Any ideas? It's almost like it used to buffer what I was typing in 2000 but 2003 doesn't seem to do that for me. Thanks for any help!!!