I have the exact same issue as ECJ215. When I try to upgrade from Windows 7 Home Premium to Windows 10 I keep getting a message that Windows 10 will not run on this PC because "The display is not compatible with Windows 10..."
My monitor is the Dell 1908 FP and the desktop is a Omniplex 745.
I am desperate for a solution because I don't want to miss out on the free upgrade to Windows 10.