Good Day JonHenry25,
My name is Carlo, I am also using Windows 11 pc and community member like you. Let us work together to sort this out.
Here's the steps you can try.
-Click Start, type Task Manager and open it
-Click on Processes Tab
-Look for Windows Explorer
-Right click and hit Restart.
-Click Start, type Powershell and run as administrator
-Copy and paste the command below and hit Enter
Get-AppxPackage *windows.immersivecontrolpanel* | Reset-AppxPackage
-Go to Device Manager
-Expand the Display Adapters
-Look for Display driver that was installed
-Right click and Uninstall
After restart the driver will be automatically installed.
Restart your computer using the power button and check the drop down will work after restart.
If issue persist,
What is the exact model of your computer?
To check the system model proceed with these steps.
-Press Windows key + R
-Type msinfo32 and hit enter.
-Look for the System Model and Manufacturer and post it here.
I hope the information above helps. Please let me know how it goes.
Have a wonderful day ahead and stay safe.
Sincerely,
Carlo T.