INT 62 u - FGDRIVER v4.02 - "FG_FADEIN" - FADE IN HIDDEN PAGE
	AX = 0029h
	BX = delay (0000h = fastest possible fade-in)
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	The current hidden page is copied to the current visible page in small
	  random sections to produce a fade-in effect
	This call is ignored in text modes
SeeAlso: AX=0028h,AX=002Ah,AX=002Bh