Found that I had a problem with a user profile earlier, deleted the profile and logged back in to re-create the profile. No matter who was logged on the IE 9, on Windows 7 Pro 32 bit, would flash open and then close for all users logged in. I had about given up when I decided to delete the user Liberty I had removed the profile and deleted all files with it (using the Windows User removal option) and then created the user brand new. After logging onto Windows with the newly recreated user the problem was fixed for all users.
Edited by hamluis, 24 February 2012 - 05:03 PM.
PM sent, issue resolved.