Not able to save PDF form in Acrobat reader

Hi,

I have created one PDF form using Adobe LiveCycle Designer 8 and Acrobat Professional 8 to save the form.

I used Acrobat 8 Pro to enable usage rights for Acrobat Reader :

Advanced > Enable Usage Rights in Adobe Reader

also tried by Acrobat Pro X :

File > Save As >Reader Extended PDF > Enable Additional Features

When we open the PDF in Acrobat Reader (I tried Reader 8, 9 and XI) its showing the message that:

Please fill out the following form. You can save data typed into this form.

but the PDF form is not getting saved.

I am stuck and no clue why this is happening.

Please help.