There is an issue where you cannot use the APPLEVDO.INF file in the PC environment of a DOS Compatible Macintosh. The error message, "The specified location does not contain information about your hardware" appears. To correct this situation, copy the .INF file to a PC-formatted floppy, and when choosing have disk, point Windows to the floppy (A:) instead of the CD.
When the display is connected correctly and the software is installed in the Macintosh environment of the computer, the front controls are bypassed in favor of using the Monitors and Sound control panel. This is why you cannot access the built-in controls from the PC environment of the computer.
Temporarily disable the Monitors and Sound control panel by disabling the AppleVision extension, or disconnect the display ADB and start the Macintosh with the keyboard and mouse connected directly to the computer. Switch to the PC and adjust the display accordingly using the built-in controls on the front of the display. When finished activate the AppleVision extension, shut down, connect the ADB cabling, then restart.