Change the name on the Information Worksheet.   

 You have to have the name change box checked, too, for it to efile.

I don't use ProSeries so I don't know where that is.

Yep, I forgot about the check box like @sjrcpa says.     For 1120 return it's on page one Item E,3.  For 1120S return it's on page one item H,2.