The "rogue" version is just for testing purposes. I'm not aware of particular changes in the graphic department as I was adding sound changes from dhewm3 and testing new openal libs (still buggy at least when closing).
Other than that, either versions could act weird as is not fully stable and one moment could run ok and other day tells that it can't load any texture, enables debug options on screen or whatever. A curse is what it is :)
