I have a 598 si that i am no expert on using .I know the first time i played with it i had a screen where i could see the screen with the full right and left side veiw or look at either the full screen left or right side.I guess i messed with some of the settings and now the only veiw i can get to is the SI on the bottom and DI on the top.any ideas on what settings i changed and how can i get that veiw back?