Servers (myMoodle, email, myWitt, etc.) and campus PC's are maintained from 5am to 7 am EVERY Wednesday morning. If you choose to use them during this time, save often and expect possible delays.
Is this your first time here?
In the course's Administration block:
Click Edit Settings
In the TOP SECTION, change "Visibility" to ShowSave your changes (the button's at the bottom of the page)