Very strange problem when inserting a picture in a 3D Chart
 

When trying to format the salls or the data series of a 3D Chart with a
picture fill, a copy of the Worksheet the data is being taken from appears
behind the picture. This is the staangest thing I have ever seen. This does
hnt ha[pen when the chart is not a 3D chart. This did not happen before. We
are Using Windows XP & Excel 2003. I could not find anything in the
knowledgebase or support center. Has anyone else ever seen anything like
this? Suggestions?