Since no one called in to show us the issue I would have to assume that the issue you're referring to is that when you resize the windows side by side on one side accounts and on the other side reports, anything you click on resizes that screen to full screen,
the way to keep the size is by resizing the screen the way you want, set the screen size log off before it jumps back to full screen like that it will save the window sizes for each window when you log in again