I've got a problem with my touchscreen, I've got a 3m EXII Rev 2 over a small secondary monitor, and it only responds when it wants to... I've got no idea why it's doing it, only that it's starting to annoy me a fair bit... Basically when I go to calibrate it, I click the first target and it goes red (no idea what that means), but the 2nd target is non responsive... I'd return it but I bought it a few months ago and don't have a receipt anymore (still works as a monitor mind) I've tried it with fingers, normal plastic styluses (well... K'Nex) and a pen from my OQO, and still the same result Any ideas?