After installing the program nod32 antivirus in ubuntu 12.04 I got this error every time I opened the console.

ERROR: ld.so: object 'libesets_pac.so' from /etc/ld.so.preload cannot be preloaded: ignored.

You can try to do this (from this page in Russian):

• Open /etc/ld.so.preload

  
  
  

  sudo nano -w /etc/ld.so.preload
  
  

  
  
  

  and delete the row libesets_pac.so and save it.




• Open /etc/rc.local

  
  
  

  sudo nano -w /etc/rc.local
  
  

  
  
  

  and just enter the line /opt/eset/esets/sbin/esets_daemon and save, after restarting the system.

This should solve your problem.