Hi James,
I am Dave, I will help you with this.
Open Device Manager, then expand the Monitors group
Right click the Generic PhP monitor and select Properties
On the Drivers Tab, click Update Driver, then choose 'Browse My Computer for Drivers' and then, Let me pick from a list....'
Untick the option to show compatible drivers, then scroll down to find the LG drivers
Do you find your model No. listed there?