5th Gen Bug while fighting double or triple battles - Pokemon White

I have graphical problem while I'm fighting double or triple battles with trainers. The selection screen of moves gets crazy. When i check some move and I will choose another move, the frame from the first one won't disapear, it will still be. It happens only during double or triple battles. Here is the image of it:
hxxp://oi47.tinypic.com/1253r0i.jpg
hxxp=http
I think it shouldn't happen. When I was playing that play, exactly the same rom of pokemon White, it didn't happen, I am sure, but now something broke (maybe because I'm using new Desmume? When I was playing pokemon some time before, I was using older version of Desmume). How to repair it?

P.S. I tried to download new rom of Pokemon W, but it also happens. I broke something in settings of desmume. What could it be?

Since this is a ROM-related question, check out the Black and White Emulation Thread and ask your question there. However, if you have any in-game questions, ask them in Quick Questions :)

Good luck fixing the problem, though!