help!! i made the 5 dollar link for the serial port yesterday, and tried it out. heh.. it didn't work. in fact, now my whole calculator doesn't work. when i try to turn it on, nothing happens. i've tried resetting it (taking out a battery, pressing on, etc), and i've checked the contrast. any ideas? i know this is off the topic of zshell, but there's not much talk in the mailing list anyways.. thanks a bunch. -greg