Hey Ice Fairy, welcome to the Cakewalk forum.
Your follow-up post confused me more than the first one. Are you running CW4, or something else?
It would help to know all of your specs (what computer, what sound card, what OS, etc.), but in cases of pitch variance my first suspicion would be something having to do with the sample rate. Like you are playing back files that were recorded at 48 kHz at a 44.1 rate. Is the pitch change constant through the whoe recording, or does it vary while the file is playing?
See if you can get us some more info, and we'll try and diagnose it for you.