So the series formula for series 1 is

=SERIES("Sample 1",Sheet1!$A$1:$A$12,Sheet1!$C$1:$C$12,1)

I can see no obvious reason for your problem.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
_______


"big thunder" wrote in message
...
="Sample 1"
=Sheet1!$A$1:$A$12
=Sheet1!$C$1:$C$12

="Sample 2"
=Sheet2!$E$1:$E$24
=Sheet2!$G$1:$G$24

Sample 2 is the one I am having the problem with.

="Sample 3"
=Sheet3!$A$1:$A$13
=Sheet3!$C$1:$C$13



"Jon Peltier" wrote:

Reply to this message. Select the first series, copy the series formula
from
the formula bar, and paste the formula into the reply. Repeat for the
other
two series. Send the reply.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
_______


"big thunder" wrote in message
...
it's an xy chart. i've checked and re-inserted the data series numerous
times. what's strange is that it will only start the shift over as soon
as
I
include the 6.5 minute and beyond values on the x axis. could it be
something
in the properties?
thanks,

zach