It has been a while since I've had this issue with my software, however I think there are two suggestions: 1) make sure you have the latest download of the software. Patches here: http://www.fsone.com/Downloads/Default.aspx
And if you've already done that, then the only comment/suggestion I have is that you're not following the procedure of the calibration. Most often users think they are doing the calibration right, but skip the last step. Be sure to do each part of the calibration completely. (I don't mean to take anything away from your following the directions, but this is a common error)
Here's a handy reference for answers to questions that have come up in the past.
http://www.inertiasoft.com/fsonefaq/index.html
If neither of these solve the problems, than a call to horizon hobby's support will need to be done.
Best
Scott