The problem as with the previous version of avast slow display the main menu, when I click on the avast icon on the desktop to the opportunity to wait 30 sec. or more while the control window appears, sometimes going to block or tray icon disappears, avast regularly update and use the latest version of avast free antivirus 5.0.677, I did repair avast but it did not solve the problem, the same happens and I have previously version of Avast, I have a 1.6 GHz processor and 512 MB of RAM, all other installed programs work well, only avast slow to respond, I hope you will fix these problems, greetings from your users in SERBIAN.