Every time I try to disable the laser the game tells me to “press escape” and promptly freezes on that screen. It’s beginning to annoy. Any ideas what might be wrong?

Does the bug occur in a particular level or episode?

I'm on Windows 10, 64-bit.

This is probably a problem related to the number of cycles in Dosbox, because I tested the gog version with cycles =3000 (default speed) and I don't have this problem.

Or is it coming from Dosbox, do you have other problems with other games running on Dosbox?

Please also specify your operating system.