To tell you the truth, I have no idea! Most threads in which this was brought up just mention the problem and then link to a program that can help. I will check my settings next time I run through it and see if I notice a difference.
As far as the ScummVM, one of the biggest complaints about the 25th anniversary edition is the the puzzle was not fixed, just made optional, so I am not sure what can be done in that case.
At any rate, thank you for the suggestion!