I am using Excel 2002.

I have real time data being charted , and I manually calculate
ranges and sheets as needed. This is not a problem.

I have recently added charts to plot this data. Every time there is
a recalculation anywhere on the sheet (even areas not being charted)
the charts flicker. Since there is new data multiple times per
second , this is a problem.

Yes, I know about Application.DisplayAlerts = False, and tried
inserting that before EVERY calculation call. I even went so far as
to use the LockWindowUpdate api call, which freezes the entire app.
Unfortunately , as soon as you unfreeze, you get the redraw flash.

Is there no way to avoid this visible screen redraw?

Interestingly, I also have a chart in this same workbook, that is
created with
Set ChartSpreadSheet = CreateObject("OWC11.Spreadsheet"), that is
displayed in a userform. This chart does not exhibit the flashing on
update problem. I was trying to avoid using that method again for
this particular chart.