Hi,

If I fill B1:B10 with 1 the sum is 10.

In Excel 2007, =SUMIF(A1:A10,"<x",B1:B10) gives the incorrect value of 0
when it is first entered.

If I place some text in A1, the SUMIF then calculates correctly, if I delete
the text, the SUMIF continues to calculate corretly.

If I delete the text, then save the workbook, close and repoen, then
recalculate the SUMIF, it is incorrect

It seems that the initial value of the SUMIF function is not correct.

Agree this looks like a bug.

Ed Ferrero
www.edferrero.com