asterisk users - Mar 2008 - Fax in AGX Extra Addons for Asterisk causes Asterisk to die

I am using the rxfax and txfax application with Asterisk 1.4.18. When 
ever I try sending or receiving a fax, my Asterisk dies. I tried to 
enable debug to see what happens, but I have no clue why it happens.

Please help me out.

-- 
Regards,


Nasir.