As some people have noticed semi permanent ghosting occuring on the DSiXL,
especially after using a specific emulator for prolonged periods of time. This
software attempts to remove the ghosting by cycling the brightness of each
pixel in much the same way that this problem can be corrected on a plasma TV.


Simply load ghostbuster.nds on your DSiXL and leave it running for as
long as possible, leaving the DSiXL open during this time (closing it will
send the DSiXL into a sleep mode).

Source- GhostBuster - Spinal Code