"Rows to Repeat at top" Not Available in Excel 2010

Hello, All!

Here I am with another question... Maybe someday when I grow up, I'll be able toanswer a few questions! ;-{)

I am creating a PDF via Adobe Acrobat Professional 9 and Excel 2010 and want to have the title row appear on the top of each of the 140+ pages, but when I go to thePage Setup and select the Sheet Tab, the Rows to repeat at top is unavailable.

Excel was fully installed as part of Office Professional Plus 2010 and Acrobat was fully installed as part of Adobe Design CS4.

Thanks in advance for your help!