Andrew Morrison wrote:
Somehow, one of my display equations was created as (or morphed into) a multiline equation, even though it is one single equation. I tried deleting a re-entering it, but the multiline designation stuck. I tried highlighting and going to Edit->Math->Change Formula Type->Displayed Formula, and still no dice.
The menu Edit->Math->Change Formula Type->Displayed is the right choice. It works for me. You say that the formula is a multiline one. What command do you see before the formula if you export the document into LaTeX, "\begin{eqnarray*}" or "\[" ?
regards Uwe