I have an Excel spreadsheet that I use to caluclate s/r levels for different markets after I enter the H/L/C. Today, after entering these #'s the spreadsheet didn't do the calculations. When I clicked in the cell, the formula is still there, but no calculation is being done; Only when I click on the formula bar and hit enter does the calculation get done. Very curious problem. I should mention that I have been using this SS for months, with a different tab for each day, and have never seen a problem like this. Any help would be greatly appreciated