>Are you suggesting that the antivirus software is monitoring my local changes to files? If so, I guess I am quite surprised that it would be doing that.
This is the primary/default mode of protection all AV products; to monitor changs to files as they are opened/closed/read in real-time. Switch off the real-time scanning of all your development folder locations and see if the problem continues.
In the End, we will remember not the words of our enemies, but the silence of our friends - Martin Luther King, Jr.
