I have a simple spreadsheet (15 cols, 1100 rows) that has a filter on headings. If I click on the down arrow in one of the column headings, instead of giving me the usual filter options it creates a rectangular picture box outline that extends to line 1200 and is angled to the right (top left hand corner is in column C, bottom left hand corner is in Column H). I can change the attributes of this box (colour fill for example) and even move it but have been unable to delete this box and cannot apply a filter to that column. Suggestions welcome.
