Fun with clamscan

[scott-DPNOqEs/LNQ at public.gmane.org (Scott R. Ehrlich)]

I've just started playing with clamscan on Ubuntu.  I ran sudo clamscan -r 
-l scan.txt / and it took about 4 hours to check files.  I reviewed the 
log file and learned it hadn't scanned most of my home directory.  So, I 
ran clamscan -r -l scan-home.txt from my home directory and let it go.  
It still continued to miss many directories (not nearly close to the max 
recursion of 10000 per the man page).

clamscan -V
ClamAV 0.94.2/8720/Wed Dec  3 22:09:56 2008


What am I missing?   How do I get clamscan to review ALL directories and 
files.

Thanks.

Scott