Highlighted model parts

[Mango]

Hello. So I have a WIP bridge model for a small project, and for some odd reason some parts of the model are highlighted (The supports to hold the bridge up). I'm very new to Wings3D, I came from Milkshape 3D.

Anyhow, I've tried deselecting everything (as you can see, nothing is selected). But yet it remains highlighted. I already attempted to export this into the Game engine I am using (NeoAxis) and it won't port. So something must be wrong lol. Every model that I export from Wings3D that DOESN'T had a highlighted section will work in the engine.

Thanks.

The picture is attached to this post.