Question: I am new to LR and have it set up on a Mac desktop and laptop. On the laptop, the Basic function under Develop simply disappeared. I am lost. Help.
It's a common issue. The Basic panel is merely hidden.
Hiding/unhiding panels is actually a feature of Lightroom but it is unintuitive - few people know it exists - so most newcomers are thrown when a panel somehow gets hidden.
Right-click anywhere in the right hand side panel area and a context menu will appear.
Click the Basic option to make the Basic panel re-appear.
John, thank you for the help. Took a few seconds to correct.
For what it is worth, I just received two LR books today (Martin Evening and Scott Kelby). Not certain if they address little issues like this or not.