Animal Crossing (U) wont work on TTDS???

I got Animal Crossing (U) for my TTDS but when I load it all that comes up is a blank white screen and nothing else.
What do I do??? :(

Make sure you have the latest firmware for your flashcart.
1.17a12 http://www.linfoxdomain.com/nintendo/ds/dl.php/DSTT_v1.17a12unofficial_English.rar

Tnx but i found out that only animal crossing v1.1 works on the ttds nd R4.

Had problems with this on my Acekard...Solved it by Disabling cheats in settings, maybe you could try that with your cart.