Grand Theft Auto China Town(GTA) problem

When i start GTAit shows the whole thing and thenwhen i press play then the screen just goes black... but weirdly the music is still on....I use a DSTT and got the latest firmware and stuff but it still doesn't work...some other games too but still how do you fix it?

Using 1.17a12 should fix it. http://www.linfoxdomain.com/nintendo/ds/dl.php/DSTT_v1.17a12unofficial_English.rar

im already using 1.17a12 but itjust plays music and the screen is just black