If you are having problems with MSB, please take a moment to follow these steps:
Make sure you are using the latest version available; if there is a newer version available, it is possible the issue has been corrected in software. Your installed version is displayed at the bottom of the MSB window.
Known Issues in the current version are listed as well as support tweets; corrective steps may be available there.
If you are not seeing recent data, make sure your device has been synced recently with iTunes.
Review the MSB Guide and Frequently-Asked Questions which cover the basics of operations and common issues.