You can also just print the form to PDF.

I received the form. It appears you have not extended reader rights using Acrobat. To do so, after saving in LiveCycle, open in Acrobat and under the Advanced Menu, select "Extend Features in Adobe Reader" to allow the user to save the data. I was able to use the drop down menus and add and remove sections just fine.What other problems are you having?

Aditya - Can you send the form so I can verify it will work with the Mac version of Adobe Reader? Please send to westlakejager@me.com

Preview allows saving the data, however does not support interactive or dynamic forms.

Yes, I've tried it myself. Could you send so I could take a look? Send to westlakejager@me.com

Why not just use a numeric field?

Yes - you must download from Adobe's site here: http://get.adobe.com/reader/otherversions/