Hooked up my PC to my TV (s-video, normal 27" TV). Set resolution to 640x480, monitor set as TV, used TV Tool, etc. I can barely read any text on the TV (icnos, filenames, anything). And it going at 60Hz like that just kills my eyes. Is that normal? Jeezus, it looks horrible. Pretty much unusable. Did I do something wrong or is that how it's supposed to be?