I am just upgrading my development system - using an HP8510w running Windows XP professional. Haing the need to support some legacy systems in Lookout 4.5.1, I am having to install this software as well as the more recent Lookout 6.1. On installing 4.5 only, after the installation the standby feature on the laptop disappeared. Does anyone have an ideas what might have caused this? I have tried a number of options, of which I am getting now where. Any help would be appreciated.