Harry Potter and the Order of the Phoenix for DS

I decided to try the DS verision of the new Harry Potter game since I enjoyed playing the Wii version. In ways the game is pretty similar. The way the gameplay, levels are organized, and type of graphics are very similar. The one thing that is very different is the controls, as can be expected due to the very different types of gaming platforms that the Wii and DS are. I found the Wii ones quite natural to play, but I found the DS controls very frustrating. I constantly could not get it to let me start casting a spell. Of course, once I started it was easy to cast and nice controls with you tracing and tapping. Anyways the difficulty of getting it to let me cast spells made me give up without getting very far. It seems someone needs more patience (or luck) than me to play this game.