Since using lion whenever i open an app for the first time - most of them - i get the beachball for 10 seconds'ish then i can start using app. The system remains useable so only the app is affected for that time. It just happened using Quicktime so its native as well as 3rd party apps. I found this thread about deleting ~/Library/Application Support/Ubiquity/ but it didnt work for me http://www.macworld.com/article/163227/2011/10/fix_a_lion_file_opening_hang_in_mac_os_x_10_7_2.html Anyone experienced this problem and know a fix? Thanks.