Sarg Reports

Hello,

      I have Squid running on Debian sid and I use SARG to create reports on the Internet activity.  The problem I am having is that sometimes SARG outputs normally and other times I get a lot of garbage like 6000 lines worth and the report is pretty unreadable because it does not include the few hundred lines I am looking for.  The next day it might work fine, it is hit and miss.  

James