Here is a section from my fsx.cfg file. Can you find missing things here? I remember beeing asked for couatl, but Addon Manager... Dont know. Its not listed below.
Yes, it is:
C:\Microsoft Flight Simulator X\bglmanx.dll.wtieabchnzuihalzbluuhicubqhrbuewhizrbtkn=1
This is strange because, the =1 at the end means the program has been trusted, and has loaded just fine. It's best to activate the Simconnect diagnostic mode to understand what's going on, this way:
Open Notepad, and copy the following text:
Save the file as SIMCONNECT.INI in this folder:
Documents And Settings\YOUR LOGIN NAME\Documents\Microsoft Flight Simulator X Files
At the next FSX launch, you should see a text window with diagnostic messages: the FIRST 5-6 lines are important: you should try to note what they are saying.