J

#### Jim

contiguous data separated by large gaps with missing data,

the plot suddenly switches from a scatter plot to a line

plot.

That is, with two columns of 50 rows of X & Y, then 50

blank rows, then 50 more rows of X & Y data, the plot is

fine -- a scatter plot with the two sets of data plotted

correctly, lines connecting the points but a gap for the

missing rows.

Then if I extend the range of the series ONE more row into

a blank sectoin, the plot switches from a valid scatter

plot to a line plot (all the Y values plotted against the

numerical count of the rows, ignoring the X values entirely.

This behavior happens on this file with Excel Mac 98,

Mac-X, and Windows, so it seems to be a real bug. It

happens even when the text data are pasted into a new file.

Any ideas? HELP!