Have you decided to participate in the X-Plane beta - testing program? If so, and you have never done so previously, you should be made aware of a few simple steps that will be beneficial to Laminar, and other members of the X-Plane community.
• First and Foremost, always perform any Initial testing with the Default Airplane at the Default Airport, with a new set of preferences installed.
• If you detect any abnormalities that did not exist in the current stable version installed on your computer, it is likely that there is a bug in the version of X-Plane you are testing.
• Remove ALL 3rd party Custom Scenery and Plug-Ins from the SIM and retest. If the problem goes away, then you may have a Scenery or Plug-In Issue.
• Re-Install your Plug-Ins "One - At - A -Time", and continue testing to determine if problem returns - If so, then file a bug report explaining that use of that particular Plug-In causes a problem in X-Plane.
• If you install ALL Plug-Ins and cannot reproduce the problem, repeat the process with your Custom Scenery Packs until problem resurfaces, and then file your report.
Bottom Line Is... the more information that you can provide - complete with any steps or road-maps that will help the developer reproduce what happened is extremely important.
File Your Bug Reports Here:
http://dev.x-plane.com/support/bugreport.html