2nd monitor resets when launching photoshop cc

Hi Trevor, thank you for the quick reply.

I'm reading up on custom workspaces right now.

Closing photoshop CC also turns of the 2nd monitor. It remembers the settings, but on startup it puts the entire 2nd screen over the 1st screen.

Are you using a custom workspace that takes your second screen into account?  If not then you absolutely should do that. 

Is Photoshop closing OK by using File Exit or F4 for instance?  If Photoshop does not close properly then it will not save its last used settings and will switch back to old settings the next time it is opened.

As a new CC user are you aware that you can save custom keyboard shortcuts with custom workspaces?  This is incredibly useful, and especially so if using multiple screens.