Just recently my system is locking up(Freezing) after a few minutes of use. I am unable to shut down Windows normally, I have to hold the Power button for a few seconds to shut and restart. After some trouble shooting I discovered that when I disable Webroot Spy Sweeper that my system operates without problem. I have been running Spy Sweeper for a few years now with Norton's AV without any problems. It is only recently after installing NOD32 , that this issue appeared. Are there any known conflicts between Spy Sweeper and NOD32 ? Thanks.