"Can you play some games on a 3-D monitor (MLD) if one of the screens is burned out?"That's a good question, but I wish you would have mention which games you wanted to load up.
Install a game and show us what the screen displays.
You wouldn't hurt anything, if it doesn't display correctly.
...front lcd is working but rear lcd is not...
This is a common problem with MLD's because of the heat that gets trapped in between the sandwiched panels and destroying the inner LCD.
As you dis-assemble an MLD monitor, you can clearly see they tried to put venting holes along the sides of the sandwiched panels.
They clearly did NOT make these venting holes large enough.
The good solution is to change out the inner LCD with a new one, and make sure all four fans are new or at least spin fairly freely.
The best solution is to do above AND swap out the fluorescent backlighting with LED's instead....LED's run MUCH cooler.
I need to ask...is the inner LCD display milky in color, or blackened?