I've noticed the game has some wiidescreen resolutions, but tend to work wrong after cutscenes, also wont display in fullscreen, but in a corner of the screen, etc

640x400 is the closest it gets to fill the scren.

How do you make those work correctly? 848x480 is my desired working res.

I've attached a screnshot so you can see what I mean.

I don't think you can run it in the top left corner the way you want, in full screen mode.

You can:
1. Run Blood in a DOSBox window, press Alt-Enter while the game is running and then move the window to the top left of your desktop.
2. Run Blood in fullscreen mode while forcing the 4:3 aspect ratio. This can be done one of two ways.
a. via the DOSBox conf file.
b. using the advanced options of your video card.

The second option will run Blood in the center of your screen while padding it with black borders.

Blood stretches the image on a widescreen monitor. To preserve the 4:3 aspect ratio without stretching, open "dosboxBlood.conf" and change "fullresolution=original" to "fullresolution=0x0".