Can someone from PMDG have a look at this screen

I posted several pages back about a white box in the upper left of my screen and a thin white line spanning the top from that box to the right .I made a screenshot with arrows pointing to the problem areas.When I'm flying in a clear sky its driving me a tad bit nuts not having the blue sky running cleanly off the screen. :( This has never happened with any other addons (Captain Sim, iFly, Carenado, etc.) Could one of you gurus have a lookse and perhaps offer up a possible cause/fix please please please! Otherwise its running very nicely :) Thanks!Chris Strobel Specs:Phenom II X4 965 @ 3.8ghzRadeon HD58704gb RamDell Ultrasharp 24" 1200x1920 FSX:AccelerationEZdokGEXREXUTXMegascenery Earth