Question : User cannot search files using "a word or phrase in the file"

I have a user who need to be able to search the contents of a folder using Windows XP search but she needs to be able to search by "A word or phrase in the file:".  All of the files are PDF documents and I have confirmed she has Read & Execute permissions to the files.  

The user is running Windows XP SP3 and Adobe Reader 9.3, the files server is Windows 2003. I search using the same criteria and find the files but I am also an admin.

Any idea's if there are additional permissions required to search based on file content?

Answer : User cannot search files using "a word or phrase in the file"

If the above fails can also try reinstalling the Adobe iFilter. This comes bundled with Adobe Reader so should be installed already, but this is what allows indexing services to search pdf documents. It's a freee download A link is here http://www.adobe.com/support/downloads/detail.jsp?ftpID=2611