If you specify individual markers for your three data sets, does that give you what you expect?
http://chart.apis.google.com/chart?cht=bhs& chs=300x75& chds=0,18& chd=t:1,2,3|4,5,6|4,8,9& chco=aaaaaa,cccccc,eeeeee& chbh=20&chm=N,000000,0,-1,11|N,000000,1,-1,11|N,000000,2,-1,11 Good luck, K --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Chart API" group. To post to this group, send email to google-chart-api@googlegroups.com To unsubscribe from this group, send email to google-chart-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-chart-api?hl=en -~----------~----~----~----~------~----~------~--~---