This is a known issue in Excel 2007. It may be partially addressed by
applying a hotfix described in this Microsoft Knowledge Base article, but it
will not approach the performance you were accustomed to in Excel 2003:

http://support.microsoft.com/kb/938538

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


"Jesperfect" wrote in message
...
How come the updating of graphs is runing so much slower in Excel 2007?

I am having a xy-graph with two data series each containing approx. 17,000
values. When I change the data it takes several seconds to update the
graph
where I am used to instant updates.