Tools/ Options/ Calculation
Make sure it's set to Automatic, not Manual.
--
David Biddulph

"jzkall" wrote in message
...
All of the sudden, formulas are not calculating. This is happening in
completely different spreadsheets. Its as if they aren't calculating.
For
example, I have this formula =SUM(E4:E38), and its returning a zero. And
yes, I have numbers in that range. :)

Any ideas??