Tech Republic have an interesting article which helps you customise the logon screen in almost any way you wish (such as including a warning message, if you so wish!):\n \n[COLOR=black][QUOTE] \n[COLOR=black]While testing some options that affect the start up and shut down speed on a Microsoft Windows Vista system recently, I spent a lot of time staring at the Logon screen. During that time, I began to wonder about the possibility of making some changes to that screen.[/COLOR]\n \n[COLOR=black]For example, I wondered if I could change the Logon screen wallpaper. I wondered about removing the shutdown button from the Logon screen. I also wondered if I could add a legal notice to Vista’s Logon screen. While pursuing these quests, I also discovered that I could display logon statistics on the Logon screen.[/COLOR]\n \n[COLOR=black]Most of these Logon screen configuration screen changes could easily be made with a few registry tweaks. Changing the Logon screen wallpaper, however, requires a separate but free program. In this edition of the Windows Vista & Windows 7 Report, I’ll show you how to tweak Vista’s Logon screen.[/COLOR]\n[/QUOTE][/COLOR]\nRead the article [URL="http://blogs.techrepublic.com.com/window-on-windows/?p=1040"]here[/URL].