I want to run GTA: San Andreas in a Small window mode because when I want to run it in fullscreen it says that resolution 800x600 @ 32bit is not found.
Please help me!
You need to install patch 1.01 because it brings support for 800x600 resolution among many others. Apply it, restart your computer and then set the resolution to the one specified. If it does not work then you need to check the requirements for this game.