INT 62 u - FGDRIVER v4.02 - "FG_XCONVERT" - CONVERT CHAR COLUMN TO SCREEN COL
	AX = 00E2h
	BX = character space column
Return: AX = screen space column of leftmost pixel in specified character col
Note:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
SeeAlso: AX=00E2h,AX=00E5h