Reflection map not working properly

Im making a material for a bge cube as a text for pre rendered reflection. I rendered a enviroment map from the cubes perspective and put it on the object with the reflection option in the mapping category selected. Unfortunately it doesnt automatically map it correctly and i cant map it manually because it wont take my input. Heres a screenshot of the problem with a clear grey area, showing that its trying to display something that isnt on the texture.