[CentOS] Clamav question after upgrade to 5.3 and 0.95

Thu Apr 9 14:13:17 UTC 2009
Rob Kampen <rkampen at kampensonline.com>

Hi list,
I have installed ClamAV from rpmforge and followed the excellent CentOS 
how to on installing amavisd - all has appeared to just work as 
advertised - thanks to all those involved in getting these instructions 
together.
Come time to upgrade to 5.3 and ClamAV 0.95 (logwatch has been 
encouraging me to do the ClamAV upgrade for a week or two)
All appeared to work fine.
However I now notice the following in my logwatch

--------------------- amavis Begin ------------------------ 

 102 messages checked and passed.
 3 messages with bad headers were found.
 
 ---------------------- amavis End ------------------------- 

 
 --------------------- clam-update Begin ------------------------ 

 
 Last ClamAV update process started at Wed Apr  8 04:02:26 2009
 
 Last Status:
    main.cvd is up to date (version: 50, sigs: 500667, f-level: 38, builder: sven)
    Downloading daily-9211.cdiff [100%]
    Downloading daily-9212.cdiff [100%]
    daily.cld updated (version: 9212, sigs: 38627, f-level: 41, builder: guitar)
    Database updated (539294 signatures) from db.us.clamav.net (IP: 207.57.106.31)
    Clamd successfully notified about the update.
 
 ---------------------- clam-update End ------------------------- 

 
 --------------------- Clamav Begin ------------------------ 

 
 **Unmatched Entries**
 Database correctly reloaded (1039377 signatures) 
 
 ---------------------- Clamav End ------------------------- 

My question is
the number of signatures reported by the clam-update has never equaled 
the number reported in ClamAV database reload - they alway differed by 
around 792 or so.
But after the upgrade to 0.95 and CentOS 5.3 it now reports nearly twice 
as many signatures!
Whats up?
Do I have two databases? Where do I find these?
Interested in understanding this a little better.
Thanks
 
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