Yes I read the thread about this topic. In the end a reinstall is the only option for the problem I was having.
In my experience with trinity out of box (i bought one for my girlfriend) There was one mesh that was causing all the difficulty. I did a mesh count and compared all the meshes with hers, since I wanted to know the exact issue.
Turns out trinity was shipped with this extra mesh file in the entrenchement mesh folder, the very first mesh in the file being the culprit. I forget its exact name, but its it was something like capital_battleshipTECH.mesh
