I had no such problem going from Excel 2000 to 2003. Are you sure something
else isn't involved? For instance if the workbook is shared you cannot
unmerge cells.

--
Jim
"Bob" wrote in message
...
|I have Excel sheets created in Excel 2000. They have merged cells. When I
| load one of these sheets in Excel 2003 the merge cells box, on the format
| menu, is greyed out so it cannot be used. Merging cells on an Excel 2003
| sheet presents no problem. How can I merge, or un-merge, cells from one of
| the Excel 2000 sheets in Excel 2003?