FCP exports wrong parts of the video

I just upgrade from FCP 5 to FCP 6 and I am having some real problems with the software. I cut a movie to get the clip I want and it plays perfectly in the canvas preview. The problem is that in the timeline the thumbnail shows the beginning of a scene earlier than the clip that is cut, and when I export the clip it exports an earlier scene. If in the canvas I click on the image it shows a small preview of what the clip actually is, but when I play it in FCP it is what I want it to be. My question is; how do I get the clip in the timeline to be the same clip in my canvas preview? This post may be confusing (I am confusing myself right now), so if you think you may be able to help, hopefully I can clarify some parts. Any help is greatly appreciated.

 

I am capturing video in 720p from a PS3 through FCP and then editing those clips to make stock footage. I am using an intensity card to capture the footage.

 

H.264

 

thanks for the tip. I will try this tomorrow.