Disables use of the hardware cursor.
Run the memory at a higher clock. Useful on some cards with display glitches at higher resolutions. But adds the risk to damage the hardware. Use with caution.
$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/rendition.sgml,v 1.1.2.5 1998/11/07 13:52:46 dawes Exp $