You must have a mouse driver loaded to use satan paint. This will be the one that came with your mouse or c:\dos\mouse.sys You must have a VESA driver loaded in order to use hi-res. Most new cards have drivers built-in, but older card folks will need to use one supplied by their card dealer, or get univbe or univesa from any simtel mirror ftp site such as wuarchive.wustl.edu. You can get a list of video modes that your video card supports by typing : "spaint -size ?" If you already know this information, you can type : "spaint -size 640 480" for example.