Yes this happened to me as well, after submitting a ticket, here is Ryan's response, works great!:
"This issue may be caused by the default Windows 7 uiautomationcore.dll file, which resides in the Windows system folder and is involved in view switching and menu use.
Unzip the following file into your root FSX folder - this is the Vista 32-bit version of the file and it does not have the problems the Win7 version does:
http://dl.dropbox.co...omationCore.zip
As long as the dll file is in the FSX root folder it will use this version instead of the Windows system folder one."
-Thong Do