Thanks a million David - I checked my regional settings and the comma was
missing - I changed it back and the function is working again.


"David Biddulph" wrote:

Perhaps your Windows regional settings have a semi-colon as the list
separator, rather than a comma?
--
David Biddulph

Zorba wrote:
Thanks for the responses - unfortunately the comma doesn't make a
difference - and that's why I never showed it in my formula. Is it
possible that excel has been corrupted in some wasy?

"Zorba" wrote:

I have used this formula in the past (last month) without problems -
now I have copied the columns and tried to alter the formula - it
keeps telling me "you've entered too few arguments". My formula was
SUMIF (AA3:AA180 "y" X3:X180) - all I am trying to do is to change
the 180 to 183 in AA and X. I have tried setting the function using
the wizard and the formula is exactly the same and still gives the
same error message. Please help.