My sister came to visit with her kids. So we bought party babyz http://www.bestbuy.com/site/Imagine...949626&skuId=9092377&st=party babyz&lp=1&cp=1 but it won't sync with balance board. All other games work fine and sync on warning message or main screen. Any ideas? It says compatible with balance board on the cover but refuses to sync. It was new and not used.