Cannon 7d Problem

I guys I just got a Cannon 7d and downloaded the trial of istopmotion and it recognizes it as a source but want let me do anything outside of the message telling me that I want see a preview. The two red record buttons show up but are grayed out to where I can’t use them. Should I change the setting on my camera to smaller video? Also I’m running Mac OS X 10.6.7.

Thanks

Please make sure the camera is set to JPG recording and manual focus to avoid long loading times (as many settings to “manual” as possible is recommend, also “PTP-mode” if available). It is also advised that there is a certain amount of space available on the memory card (an empty one is even better). Enhanced capturing support is only available from iStopMotion 2.8.3 and OSX 10.6.8 or newer due to technical reasons.