/var/tmp full of BD* files

[linroot]

Hi, I have installed squidguard and it seems work very well, but i have a 
problem. 
Squidguard fill my entire /var partition (1 GB) after 10 or 12 hours 
of working.  After that squid crash. The directory is /var/tmp and inside I 
can 
find lot's of BD* files, they seems data file with various ip.
Any advices ?
thx
linroot :-)