Whenever I open up a new Home Folder window, the Finder will seems to automatically 'scan' through the entire contents of my hard-drive alphabetically, from the root folder. I know this because whenever this happens I can hear the hard-drive suddenly 'seek' alot my computer slows down somewhat. This is confirmed when I look at Activity Monitor when I see the Disk Usage line is hovering around 5 meg/s and the Finder is using about 50%+ of the CPU. Plus when I look in the 'Open Files and Ports' tab in the info for the Finder, down the bottom I can see my files and folders being scanned. It doesn't last very long (3-4 mins), but it also means my computer is almost rendered a turtle (17" C2D MPB) for the duration. Normally I would blame the Finder for attempting to calculate the size of the files/folders in the window, but I have turned off that option and sorted it by name only. Perhaps the Finder is calculating the space usage of the whole hard-drive? Does anyone else have this happen to them? Is this normal, or is there something I've turned on by accident? Similarly, is the update-prebin process a cron job at happens at midnight?