Tip: switch the computer off and back on after changing pages to reload cleanly.
ProView · Series 450
NO SIGNAL SWITCH ON THE COMPUTER
Screen
ProTech 500
Click the tower's power button to switch the whole computer on
This keyboard is a clickable prop and doesn't type into the screen above — browsers block that. To actually type in the program, open it in a new tab instead.
The monitor's own button only controls the screen — the tower's button controls the whole machine.