Wine is an Open Source implementation of the Windows API on top of X and Unix. If your video card does not support hardware-accelerated OpenGL, then run the script like this: OPENGL=NO ./wine.SlackBuild If you wish to apply an unoffical patch that might fix up some problems running IE in wine, then do this: IEFIX=YES ./wine.SlackBuild While it's not strictly required, the fontforge package is strongly recommended to be installed when building wine.