I found out why the problem was happening. I had included a "Link" to
another file in the title bar which precluded the sort from defaulting to
"Header Bar".

"Steven" wrote:

I feel like an idiot. I deleted the first row in a data field that I used to
be able to sort by. After inserting a new row and re-titling each column,
when I go to sort now the default comes up "No Header Row" and I have to
switch it back to "Header Row". Is there something I can do to get it to
default back to "Header Row" like it was before I messed it up?