I'm using the trial version of Parallels 3, but when I attempt to run a 3d game (in this case, Painkiller) I get a message saying that it cannot "Initialize the DirectX Renderer." Could this be because I installed Painkiller while I still had Parallels 2? Or is there some other reason? Also, is it adviseable to actually purchase Parallels 3? Some people on the forum are saying that they never received their activation key, even after paying for it. Is there a good way to contact Parallels support about this? I sent them a question via email a little over a week ago, and they still haven't responded.