Distiller problem in UNIX

[Suhail]

Hi All,

we are facing problem in distiller conversion process. the conversion 
logs says. Your help is highly appreciated. distilld script just shows 
stop and start of distiller process. Kindly help me pleasee

WARNING: This version of the Acrobat Distiller may not be fully
         compatible with previous versions of Acrobat Exchange
         and Acrobat Reader due to new functionality based on
         recent PDF language additions.  To ensure compatibility
         with previous versions of Acrobat Exchange and Acrobat
         Reader, the DEFAULT for compatibility can be set inside
         your personal preference file.  Setting this compatibility
         switch, however, will result in the disabling of new
         features of the Acrobat Distiller.  The compatibility
         switch may easily be overridden at run-time through the
         specification of -compatlevel and in no way represents an
         actual permanent loss of features for Acrobat Distiller.
 
   NOTE: Running the Acrobat Distiller with the -noprefs option
         will effectively disable the preference chosen below.
 
   Enter Acrobat Distiller personal preferences file modification [1, 2, 
3]
      [1] use 3.0 new features
      [2] use 2.1 compatibility
      [3] leave compatibility undefined   

and there is a temp file created in the document conversion directory 
saying "Invalid response. Please reenter response [1|2|3] "