Int 2F Fn 4A10  - Smartdrv V4.00+ - Signal Serious Error                   [c]

   AX = 4A10h
   BX = 1234h
Desc:  pops up a message box saying that a serious error occurred and to hit
     R to retry.

Note:  this function is also supported by PC-Cache v8.0.

See Also: AX=4A10h/BX=0000h