Unknown symbol on the top screen of my blackjack II?

There is this weird symbol on the top screen of my blackjack ii and i cant figure out what it means. Its hard to describe but it looks like two triangles stacked on each other with the point of the triangle pointed to the right side. There are also two lines slanted out from the two triangles. The whole thing looks kind-of like a sideways erfly. It also has a white oval around the whole thing. I keep getting these unknown symbols and its annoying! Do u also know a website that will show me all the symbols? Thank you!