Redraw a pane splitter window

[gurucplusplus]

I create a SDI appication and split the main frame to rows and columns using CreatStatic()and CreateView() for each of the splitter frame. It works fine. In One of the pane frame, I display the graphic rectangle and text using FillSolidRect(), and DrawText(), and these rectangles and text need to redraw every time to update system status. To do that, I call InvalidateRect(NULL,FALSE) in OnDraw() to redraw this window frame. It is working fine also. But some how by calling InvalidateRect(NULL,FALSE) all of my modal dialogs in my application doesn't work any longer causing my application to hang ( no response from any buttons in toolsbar). If I commented InvalidateRect(NULL,FALSE) all of my modal dialogs work but then the graphic rectangles and text no longer redraw and update. Help!!!!