A little tip. Don't know if will help others or not. I've installed several betas of Eset Smart Security at different times. The last couple of times I installed the beta, the program would not update past the 2353 definition update and yet it would give the update as current. If you go to documents and settings, all users, application data (which is hidden by the way and you will have to set your computer to view hidden files), you will find an Eset folder. I uninstalled Eset Smart Security, went to documents and settings and deleted the entire Eset folder. I then reinstalled the program. The program now works in all phases.