Instructions
Compare the game's system requirements with the hardware on your computer. If your computer does not meet the minimum system requirements, you more than likely will be unable to boot the game to its main menu.
Update the drivers on your video card. These updates are typically available for free on the website of the manufacturer of your video card.
Reinstall "Ranch Rush 2." Many of the game's errors, particularly if it has worked previously, are caused by file corruption, which can occur for a variety of reasons. Reinstalling the game will remove your saved game files, unless you back them up into a different folder, but it will give your computer a fresh group of files to try to run the game from.