[Sinkmore]

Again, I'm using just about the same mods.

I assume you read the Traveller's install info, and got ISE and Traveller, and the Traveller ISE fix, in the right order(?). My dubious recollection is that Traveller's comes first, then ISE, THEN the Traveller ISE fix, but I could easily be mistaken.

I also had a problem where I couldn't mouse the sonar - it was caused by using Webster's Close-up Sonar View (something like that?) on top of the other mods. I removed it and the problem went away.

{edit} I also (still) have a sluggish mouse problem. If you find the cause, please post! My uninformed suspicion is that it's due to a large number of units deployed on the map, maybe Traveller's land-based observers? Pure guess, fwiw.