Click the Web Updates button in the Information rollout to make sure that you are using the latest version of the Maya FBX plug-in.
This function searches the Autodesk web site for a newer version of the plug-in you are currently using.
If you have the latest version, the following message appears:
If a newer version of the Maya FBX plug-in is available, a window appears to inform you.
See Downloading the Maya FBX plug-in for information on downloading the latest Maya FBX plug-in.