FONT20 driver for generic SVGA

put into autoexec.bat
SET F20=XY

where X and Y select the colock rate

value  clock    result in 80*25 text
                without F20                with F20
   0   25 MHz    62 Hz                      52 Hz
   1   28 MHz    70 Hz (BIOS default)       58 Hz
   2   ?? MHz    ?? Hz                      ?? Hz
   3   ?? MHz    ?? Hz                      ?? Hz (F20_SVGA default)

x is the new value for 80*25
y is the new value for other screen resolutions (800*600 graphic,..)

if your monitor does not display an stable picture put
SET F20=2- 
into autoexec.bat
 