Just a warning from a casual user of my Hero who has not rooted. Today I updated my Spare Parts app from the Market and noticed a new setting named 'Activity/Process managements'. The 2 options are 'Normal' or 'Aggressive'. I changed it to aggressive and promptly got distracted at work. 15 min later when I came back to my phone, it was really acting up. Everytime I went from an application back to my 'home', the HTC screen would appear and all my widgets would reload. Took me a few minutes of restarting and uninstalling another app before I realized the 'Spare Parts' app was aggressively closing 'Sense'. Once I turned that back to 'Normal', all was good. Just wanted to put this out there because when the problem started, first thing I did was search these forums. Now hopefully if anyone else encounters this, they can get it straightened out.