i recently switched to CS6 but looks like i am missing something obvious here. i have a small TY channel with some PC gaming videos and so far i have been using CS5.5 to mix and compress them. i record everything at 1920x1200 and then use one of h268 presets for 1080p. my problem is that i dont know how to get rid of black stripes on either side of the screen. here's the link to the video for reference:
http://youtu.be/h_9usG9VEiI