Hi tordillo
OFEV used to be done from within the base mod but not anymore.
See my tutorial Post #6 for OFEV correct installing.
http://www.subsim.com/radioroom/showthread.php?t=211804
If you followed my previous instructions then you will only have
2 enabled mods so some of the instructions highlighted below will not be applicable.
While you still have all your mods enabled you can create a mod list mep file if you wish.
See my tutorial post # 5 for full instructions.
When you are ready disable your mods down to 7-4-2
Delete the disabled 7-4-2 base mod so as to remove your current OFEV attached to it.
Copy a new 7-4-2 base mod to your mods folder.
Keep the 7-4-2 base mod disabled until after installing the OFEV and making any changes to it.
Once you have saved the changes made to the OFEV then you can enable all your mods.
When done load the saved mep file.
I think that might just have solved your problem.
Peter