identically size merged cells for sorting rows

[julieanne12]

I am using excel 2000 and I have been trying to sort rows based on the
content of 3 colums. But every time I try to do this I keep getting told
that the merged cells need to be identically sized, I have no idea what this
means and how to change the cells so that they are identically sized.
Can anyone help?

[hideki]

I think that's mean you have merged cells in your selection. You have to delete the merge before sorting. I'm not sure if there is other solution without deleting the merge.