Sand box not working in 5.0.418. I download from 377 to 418. Did a complete uninstall with removal tool. Downloaded 5.0.418 from Avast website, then rebooted at least twice. When I right click on Firefox and ask to run virtual, I get a smaller screen not re lined and the only way I can get out of the system is close in the close from the tool bar. I have paid for the Professional version but am getting the same benefits as the free version. Come on, somebody please help!!!!