I have balance problems with Lamictal, but I'm on a high dose and I was warned about it in the hospital when they increased it. I'm not sure there's anything to be done about it except to always be sure of where you are in space, and to be careful about getting up or turning around too fast. Even so, I've had a few falls and face-planted in church (of all places) on Christmas Day. I never seem to get terribly hurt though.