Cygwin - diff command does not provide output

[D.R.Vijayakumar]

Dear Sir,
  I am using Cygwin for the purpose of comparing files.
  I tried to compare the files in two different directories and directed the 
output into another directory. 
  I could achieve this by writing a serious commands. But when I did that I 
gave the file name for the diff output as difffile1,difffile2 etc., 
   
  But after some time "diff" command does not work correctly.
  If I type diff x.txt y.txt 
  I simply get the result as "Files x y differ". But I am not getting the 
output of what exactly differ as I was getting before.
  I think I have changed something.But I do not know what exactly I have 
changed.
  The version of diff : (GNU diffutils) 2.8.7
   
  Can you please help me overcoming this problem?
   
  Thanks in advance
  Vijayakumar

                
---------------------------------
Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ 
countries) for 2¢/min or less.