Initially when I received the cube, without any fiddling I had 8 x's, see my previous posts, then after the first time I opened it and tightened the screws I went down to 1 x, now I've opened it a further few times, not over tightened the screws but just made sure they weren't loose and I re-arranged the blades and am now back to 8 x's, plus the x's are always in the same row, so the problem must be the board, I have spoken to the seller and he is awaiting word back from the supplier, hopefully gets sorted soon!