Hey schmoo, sorry to hear you are having trouble. Can you tell us a little more about what is happening here? When you download a project from the Scratch website, you then find yourself logged out?
What type of computer operating system and browser are you using?
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If you're using a mac, look for Java Preferences in spotlight, and in Java applet versions, choose "J2SE 1.4.2". The problem happens a lot on a mac, which is why I thought you would be using one, but that should fix it.
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