Hi there,
I know this has already been mentioned a couple of times in the past few days, but I am having this problem myself.
I recently installed FSDT Geneva, as I had not yet installed it into P3Dv4, and since then I haven't been able to get Couatl to load.
I have purchased the Level 2 Expansion for GSX, and coautl was working before I installed LSGG.
Any help is greatly appreciated.