Never had any problem with FSX on this computer for since built last Sep. Lots of scenery and aircraft add-ons, including MallorcaX by Aerofsoft also.  No problems whatsoever.

This evening I install LondonX-VFR. FSX adds the scenery, apparently successfully, but then it immediately freezes and gives me "fatal error" msg. Check online for solution does nothing, FSX eventually shuts down on its own.  Wash Rinse Repeat several times, so I uninstall it, but to no avail, my FSX is still hosed 

Googling FSX fatal error gets me all into the uiautomation.dll stuff which I've never had a problem with.  I did download a specific version of uiautomation per this thread
http://www.flightsim.com/vbfs/showthread.php?222234-FSX-problems-with-Windows-7
but it didn't change anything. 

Anyone have any experience with this or ideas?  Thx.
P.S. Have emailed aerosoft support but it still early quite early there.