I don't see a prx file, so I'm guessing no, so maybe this is a problem.  
My index looks like:

-rw-r--r--   1 tomadm   tomcat      938M Apr 27 10:08 _191f.cfs
-rw-r--r--   1 tomadm   tomcat        29 May  5 16:39 _191f_6.del
-rw-r--r--   1 tomadm   tomcat      2.5M May  5 22:53 _192a.cfs
-rw-r--r--   1 tomadm   tomcat         9 May  5 23:08 _192a_1.del
-rw-r--r--   1 tomadm   tomcat      281K May  5 23:08 _192b.cfs
-rw-r--r--   1 tomadm   tomcat         9 May  6 13:45 _192b_1.del
-rw-r--r--   1 tomadm   tomcat      281K May  6 13:45 _192c.cfs
-rw-r--r--   1 tomadm   tomcat        20 May  6 13:45 segments.gen
-rw-r--r--   1 tomadm   tomcat       160 May  6 13:45 segments_2i5r

-Mike

Ted Dunning wrote:
> Are you storing positional data in your index?
>
> On Wed, May 13, 2009 at 7:22 PM, Mike Korcynski <Mike.Korcynski@tufts.edu>wrote:
>
>   
>> ... I still fail to fully understand though why I can get results for the
>> current chunks but then they fail to match an exact string.
>>
>>     
>
>