Dell Triniton P991 monitor used daily for 4 years is in need of service, The diagonal scan rasters are starting to show a lot and the color strength is getting weak. . Worse yet, following a few hours off, upon power-on the screen turns bluish and then collapses torwards the center and stays dark. Another immediate power off/on cycle or two will finally get the picture to stabilize. I am located in Fort Collins, Colorado.  Can this be serviced locally?