[quote="SwissCheeseMaker":3djmmeyl]i've ran vavoom before without a custom game or textures. but when typing things like dwango8.wad or mylevel.wad in the Custom Game input, vavoom simply doesn't run. there's a black dos screen for an instant, but then its gone. so its impossible to take a screenshot.
Custom Game input is for full mods only, not simple wads. Type in Files input instead.
For future, you should use Custom Game field only when you have a mod made as a separate folder with data packages inside.