Final Fantasy Crystal Chronicles - Echoes of Time

i have downloaded this game from 2 diffrent sites and every time it makes a sav file and then trys to load then the ds just goes black and does not do any thing why is this and how do i fix it? p.s. this is the only game it does this to

Replying to #1

It has anti-piracy
http://forum.romulation.net/index.php?topic=15461.msg173425#msg173425