What does a "data bite" represent? What error message do you get?

You should check the XL help topic 'Excel specifications and limits'
specifically the 'Charting specifications' section. One undocumented
limit is that the length of any token in the SERIES formula cannot
exceed be more than about 250 characters. So, if one selects lots of
non-contiguous ranges, it is very possible to exceed that limit.

--
Regards,

Tushar Mehta
www.tushar-mehta.com
Excel, PowerPoint, and VBA add-ins, tutorials
Custom MS Office productivity solutions

In article ,
says...
I have a customer that has indicated that he can only plot 400 data bites in
an Excel Scatter Chart. Is the correct for Excel 2002 or 2003?