INT 62 u - FGDRIVER v3.03 - "FG_MOUSEINI" - INITIALIZE MOUSE SUPPORT
        AX = 0061h
Return: AX = status
            0002h two-button mouse
            0003h three-button mouse
            FFFFh initialization failed
Notes:  For FGDRIVER v1.10, this function was "FG_MAKEPCX" (see AX=0057h);
          "FG_MOUSEINI" was AX=007Ah
        After this call, the mouse cursor is invisible
SeeAlso: AX=0060h"3.03",AX=0062h,AX=0066h

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