Can You Please Help?

Hello friends,I got exited when I found the AUTOTHUMBNAIL utility. (File Description: Autothumbnail adds a simple menu entry to FSX to automatically generate a thumbnail for the current aircraft. The thumbnail is created from a screenshot and is immediately visible in the aircraft selection menu. No need to find image, resize and copy it. Requires .NET framework 2.0 http://library.avsim.net/search.php?Search...root&Go=Search)I got to use it last night and it DID create a thumbnail for an addon aircraft and automatically appeared on the list as it should. However, following the same proceedure it did NOT work for others. That is, thumbnails were created and placed in the FSX Files folder (like the first successful one), BUT the thumbnail did NOT show up on the list with other defaul aircrafts.Anyone knows how to solve this problem?THANKS A LOT FOR YOUR HELP!dito