Are there gaps in the data? If so, go to Tools menu Options Chart tab,
and in the top section, choose the Interpolate option for dealing with gaps.

- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
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"DEE" wrote in message
...
I am plotting four series of data on one plot, with date as X axis. Only
the
data points are plotted, no line connecting the data points. The
formatting
for each data series shows a line and symbol in the edit window fo each
series. How can I get the lines to connect the data points? Thanks.