I got a workbook that is created in 2003. Now my company upgrade to 2007, so
try to save the workbook into 2007.

But when I open the workbook (this workbook contain formula links and
charts). The funny thing is, it rename my worksheet name that contain charts
to Chart1, Chart2 etc.

I tried renaming them back to the worksheet name I have and save again.
When I open the workbook, again the worksheet name is rename to Chart2,
Chart4 etc.

What would be the problem?