<p>It can't calculate things! On the home screen it looks the same but there's no bar on the bottom of the screen. If I enter any equation like 1+1 or something and press enter, nothing happens. The equation just stays on the bar and no answer comes on the screen. The number of lines in the bottom right corner goes up every time I press enter. Also no images appear on the apps desktop except the date.</p>
<p>T^T This is so scary. I don't want to reset it because I have stuff saved on it.</p>
<p>Um... what to say???</p>
<p>Skynet is activated. The computers control the world nuclear arsenal. The war with the machines has begun...</p>
<p>:D @ Gryffon5147. </p>
<p>@OP: I talked to my techie friend. He thinks that your option at this point is to use your computer link cable to back up everything you can, and then, unfortunately, reset the calculator. If you can't back it up, he suggests checking out a website called Cemetech, because someone there might be able to help you.</p>
<p>Best of luck.</p>
<p>You did save everything important in archive didn't you? Resetting the TI-89 should only erase everything in RAM memory and leave the archive intact, which means you should just lose your settings and clock.</p>
<p>Ah well, I had no choice but to reset it. It's back to working now!</p>