See http://www.contextures.com/xlDataVal03.html

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"JB2010" wrote in message
...
Hi


Have sheet that has a column of 10 empty cells (B2:B11), which each need a
name put against the list of tasks (A2:A11). I want to make the names
appear
from a drop down box, but once i have selected one name for a task, i need
to
ensure that that particular name is not available for selection in the
drop
down boxes of the remaining cells.

Does anyone know if this is possible? I want to avoid having to
conditional
format a load of hidden countifs to spot & highlight duplicates.

Many thanks in advance, please let me know if there is anymore info you
require.


cheers


jb