I recently got a Canon Pixma MX860 Printer. And I am using the same on MacBook working 10.4.11. I am trying to use it wirelessly through my home LAN. The printer starts working fine but late on I got a few update on my system and I am not able to use anything here. I am getting a error that I have to turn of Canon IJ NetworkScan Utility to fix the issue. But I cannot find anything that in the system. Is this some kind of virus. How to make the printer work back again.