Sorry, I meant are you screwing the board into the little gold hex standoffs. The standoffs screw into the case, the motherboard sits on the standoffs and the screws go through the holes in the board and into the standoffs. Most cases have a few standoffs installed already (some do not) and as I said, you have to add the correct ones and remove any that were there that don't line up with the holes in your board. The standoffs keep the board from shorting out on the metal case. I've heard horror stories of people who have just mounted the board right to the case without using the standoffs. Sparks fly when they turn it on and it can fry the whole thing.
If you aren't sure, take the board out and count the standoffs. You should have one that lines up to each mounting hole in your motherboard. If there aren't any standoffs look in the bag of stuff that came with your case, they should be with the little screws. Screw those tightly into the case in the proper places (where they align with the holes on your motherboard) set the motherboard on top of the standoffs and then use your screw with the little washers to fasten the motherboard to the standoffs.
Again,
Good Luck