New object: weird shiny circle/spots

Hi,
Lately, i've been a small issue, small, but nut driving!..

I created a new object that goes on the wall, i created the diffuse, specular, normal map (thanks Syboulette if you see this!), in blender it looks perfect! very nice reflection, very accurate bump! ..but in-game, there's a shiny line that goes around the entire object..
I tried without normal and specular, i tried without the footprint, tried with different base object,..nothing!

i know it's not easy without posting images of my object but..hopefully..i'm explaining clearly enough to understand and find the issue :P

Thanks!