I'll repleat what I said:
People complaining about GTS and Transfer Machine and PokéShifter, listen up.
A few things to say:
1. Some DS Wireless Communication options are using a chip for "IR" (infra red) which isn't on flashcards, that crashes the game.
2. Some DS Wi-Fi Options are in effect of a Nintendo-side problem, like the Global Link, they are fixing that now.
3. Some problems might be fixed using Rudolfs Universal Play patch. (link's at Page 1)
Stop arguing and stuff, I hope I've awsered some of your questions.