Irrlicht Engine

I am trying to create a menu on the far right of the screen and when I put a button or list box at the far right and in the middle...they become unselectable....i wonder why? it's like an invisible area on the window where the items become unselectable...? is it possible i made another component too big and part of the invisible part is covering the unselectable item??? how can i force an item to be selectable???

Im sure you are overriding some elements. Clean your code and be sure that there is no other gui element added after the buttons and overriding it. If its not the case, post a piece of code so we could help.

well, 2 common errors:
1st overlapping elements (like you thought)
2nd your event receiver always returns true