Here are the prefs that you can delete manually if you don't want to use Dragster: com.apple.desktop.plist com.apple.dock.plist (your choice to delete this or not)* com.apple.finder.plist com.apple.LaunchServices.LocalCache.csstore com.apple.LaunchServices. plist com.apple.LauchServices. UserCache.csstore LSApplications LSClaimedTypes LSSchemes The contents of the /Library/Caches/ folder Since the problem is not this* I will leave that one alone.