I would never use virtual machine with this. Virtual machine is a pc emulator and the dosbox included in this package is also a pc emulator. You're using an emulator inside an emulator. The included Dosbox here is trying to use your local pc sound and video options and you're only offering some emulated version of that.

The only thing I can think of is that it must be incompatible with your emulated video card or maybe your PC is not new enough for all this emulation.

These packages have been downloaded dozens of times and used by many many people with no issue, they are safe to use without virtual machine. And I'm sure there's a person or two here that can attest to this as I've been a member here for years.

it works now, i forgot to mention it was an online virtualbox, and online virtualboxes dont support emulators in it, thanks!