Mr Windows, the "monitor" on this laptop is CONNECTED to the laptop. It is not something I can choose to change. Perhaps, when you get so confused you blow away your knowledge of what monitor is attached, you could, on rebooting, actually KNOW or DETECT what monitor is attached, instead of picking 'generic monitor'.
Exacerbated by the fact that I don't know what kind of "monitor" this is to select it in the settings after the fact, so instead I have to hunt through Dell's website for the install program and run that.
Total number of reboots so far: 5. Total further expected before fixing it: 3.