So I've been playing Worlds of Xeen on my desktop just fine, and wanted to try playing on my laptop so I can bring it downstairs and hang out with the kids while I'm at it. Anyway, I installed the game like normal using Gog Galaxy and set everything pretty much the same as my desktop, but when I start either game up, I get sound and the keyboard is responsive, I just get no picture whatsoever. I've tried full screen (in which case it just straight up crashes), and windowed which gives me the sound but no picture problem. I also tested it on MM3 and same problem. Anyone know what might cause this, or how to fix it?

In case you haven't seen them, the Graphics options that PetrusOctavianus is referring to are located via a separate application that GOG provides. It should show up under the same start menu grouping as the game itself (or you can find it in the game's folder). It's a small little front end that adjusts the graphics options in the DOSBox configuration file for you, so you don't have to root around with Notepad yourself. I'm guessing that changing this setting will fix your problem; it was likely caused by different graphics chips in your laptop versus desktop.

So it turned out to not be the graphic mode, but the scaling engine. For some reason my laptop won't run the game in anything but normal2x or normal3x. I'm used to having it set on hq3x for my desktop, just because I think the font for in game text looks nicer in general. But oh well, thanks for the help guys.