Crashes when in simulator when button pressed

I have 3 views and the first view has a motion background (sequence of pictures), music, and two buttons. When I push either button it crashes. I have a feeling its a memo开发者_Python百科ry problem but I'm not sure how to fix this. I'm rather new to Xcode.

What's in the Xcode log when you run the app under the debugger?

Are your buttons hooked up to IBActions? If so, what do they do? Put a breakpoint on them in the debugger and watch what happens, where does it crash?