Replace the empty call by =NA() which displays as #N/A and is ignored by
chart engine. Then as each new data arrive replace =NA() by new data and
chart will update
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
www.stfx.ca/people/bliengme
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"svangis" wrote in message
...
Hello

If I do a a graphs for let say 12 months. I only got values for half of
the
time but there are formula in the all. THe first week there are no values
the
curv is dying, why and what can I do so I have an automatic refresh of the
graph.
yours
svängis