Removing the border line from camera shot in excel 2007

[twc]

Hi

The title in the attached chart is a camera shot transferred from another excel 2007 worksheet in the same workbook.

I’d like to remove the border line, I’ve tried right clicking... then format picture ...no dialogue box comes up. I’ve scrolled through all the commands in the ribbon + non ribbon commands and can’t find anything that seems appropriate that’s not greyed out

Can you help please?

Thanks

Tom