I saw something similar before I replaced my ol' TNT 1 (may have had something to do with the 83.5 Busclock)-- over time, if I'd alt-tab between apps too much (need something to read for those long flights), eventually something would creep into the texture memory (and eventually the whole durn thing would go up in flames), and most commonly somethin' the edges of the factory tiles would mysteriously get a half line of text from the radio buffer. Now it doesn't happen (Although I still get an analogous in brand W).
