Hello,
It looks like there is no space between "Copy" and "Picture_" on the line in question.
If adding a space doesn't help, you may have an issue similar to the one discussed he
http://www.excelbanter.com/showthread.php?t=204071.
In that case, they recommended changing the default chart type. I think that you could do that with the SetDefaultChart method. See this help file:
http://office.microsoft.com/client/h...2Dfbe7ff572616