if you are useing a custom brain MAINzabaware files can become oversized. SOMETIME this may MESS up his RESPONSES.
The Quickest fix usually is to copy the ORIGINAL DEFBRAIN folder off the CD or REinstall over your existing copy.
ONLY the main files will be overwritten.
THE AUTOTOPIC & XTFFILEs will still be there ?
GOOD LUCK
SPYDAZ
BACKUP FOLDER FIRST............