can't load organization chart

[Josh]

Hi all.
When I am in excel, I go to insert -> picture -> organization chart.
After I click on organization chart, I receive this error: Cannot
start source application for this object. There may not be enough
memory left.

I figured the first time, alright, I've got a lot of apps open. I
restarted my computer, and still received the same error with no other
applications running. I am on a dual processor g4 500mhz, with 768megs
of ram.
Any help would be appreciated.

Thanks again.