My Sony HQ100 seems to have a degauss problem. The bottom left hand part of the screen goes pink on screens that are red(highly visable on BBC1's interlude red screens) If i degauss it externally it's fine for a while,however after a few on off cylcles the problem returns! t's almost like the TV's degauss coil is acting in reverse! The TV is nect to a patio window and no speakers are near by.Could it be that when i degauss it i am actually correcting a small purity error and the TV's degauss coil is knocking this back to how it was??