I wasn't sure if this should be in the 3DS or the games section, but since the game works fine when I play it on the regular DS, I figured it might just be a compatibility issue.
I've been playing my Pokemon Black game on the regular DS, but recently switched over to playing on the 3DS without problem. I recently got my 3DS to connect to my home internet, and set up Gamesync with it. However, when I try to enter the Dreamworld, the game goes black, however the backlight is still on and the music still plays. The game also freezes if I exit out of the C-Gear submenus. The game will also freeze when I try to access Mystery Gifts (the music still plays and the background moves, however it still asks to select the method of receiving the gift without an option to back out to the main menu). I popped the cartridge into the old DS and I was able to access the Mystery Gift menus (however it couldn't connect to the internet which was fine by me).
When I was setting up the Gamesync ID, it said something about how it needed to create save data to the DSi and erase any online/friendcode data that would have been on the other DSi (even though I used a regular DS, but I didn't have any wireless data anyway).
I'm rather frustrated because if it isn't one thing, it's another.
Any help would be greatly appreciated!