I have already said this on Steam, but the game is running fine now that it doesn't force everything into 640x480. If you want, I can help you test the build if things like resolution options are added in to see how it goes, because I doubt this would be a problem to my system exclusively. Would be a shame to launch on steam with an issue like that in place.
No doubt! I highly doubt it is only your system; I have a feeling newer operating systems really dislike the tiny resolution. I bet if it forced it to something like 1920x1080 (for example) it would have done just fine. A little bit of the contrast is lost when its not in a forced resolution, so I will do some research on adjusting gamma so you can make the game darker if needed. I'm making a list of all the options we'll need and I hope to have them ready as one big update for the Steam release.
Ah! That's got to be it. No operating system could possible want a piece of software to force a resolution that it doesn't even know about! Thank you so much for helping me troubleshoot that; it was a bit of a struggle but I think it will make everyone's experience go a lot smoother from here out. I haven't used Windows 8.1 much myself, let alone checked its supported resolutions.