Yesterday I've seen two instances of TextEdit when using Cmd+Tab, although I did not open more than one instance and even if I have more text file, it should be only one instance in Leopard. Today I've seen two instances of Safari when using Cmd+Tab switch. I find this unusual. Also my widgets were frozen before killing Safari. All that I've done yesterday was to add some hosts to be blocked from advertising domains. I would like to know If I'm being spied or why this unusual behavior ?