I had recently had a Mac on Lion unable to load the Users & Groups Preference Pane.
My IT support had suggested reimaging the computer. Reinstalling the Operating System, reloading the applications, and transferring back the User information from Time Machine Backup. Well, after doing all of that, the problem reappeared immediately. I scoured through Apple Support Communities and found this fix. For some reason, some transparent users are showing up in your system. They need to be deleted. But since you cannot load Users & Groups... it becomes a problem. Here is the solution / procedure. Quit System Preferences. Launch Terminal. (Applications/Utilities/Terminal) Copy & Paste these commands. sudo dscl . delete /Users/Guest press enter
Terminal may ask for your Administrator Password, enter that. sudo dscl . delete /Users/Guest1 press enter
Terminal may ask for your Administrator Password, enter that.
Relaunch your System Preferences. All should be back to norma…
Adobe Spark is a great way to create video with a Chromebook. It is simple, scaffolded, and works. 8th grade students at my school are currently using it for Social Studies, but it could be used for many applications.
Here are my tips for getting started with Adobe Spark Video on a Chromebook. Full video above, but my tips are linked below by topic.