My 83+ once got hit by a water balloon. It worked strange for three hours, then came back to normal. However the keys are still harder to press.

According to the poll's results, all calcs seem to be pretty solid. Well done, TI!

that's the only thing they got right. they still crash just about every day.

I know what you mean. On average, one RAM clear every day for me.

My 83+ went 2+ years without a crash... Then I decided to press:
Y=, Clear, Graph, Y=, (zero), 2nd, (zero), cos, (Up)*5, Enter, vars, (right), Enter, Enter, (comma), vars, (up), enter, enter, enter*10, Y=
And that was my first crash... As for RAM clears:

prgmG66
:999->dim(L1)
:Fill(999999999,L1)
:SortA(L1)

And that was my first "virus"...

Your keypress sequence doesn't crash my 83+.

Well, On every single ti-83 (+,SE) I've ever tried it on it has worked. Just to be clear:
You press Y=, clear, graph, y=, (zero)
Then You formulate the expression: Equ->String(Y1,Str1
then you press Enter a whole bunch of times, and then Y= once more. Your calculator is "special" if it doesn't crash. It's a technical default imbedded in the 83 series' ROM. Either way, the program still works.

I'm not saying that the OS is perfect or anything, but it doesn't crash that much unless you've got some pretty buggy programs.

My 83SE has gone through quite a bit.
It's a good thing I keep it in my backpack, though, or it would be completely broken.

I've dropped my 86 a decent number of times (usually on a carpet, though) and it has a few scratches, but except for that is just like new. Haven't dropped my 83+ yet, but it looks like the previous owner did (got it used from eBay) - the text is partly worn off half the keys, some of them stick, there are deep scratches in the back, and both rubber "feet" are missing.

Dropped my 84+SE on asphalt once. The case got tar gouged into it, but other than that all is well.

I dropped my TI-84+SE many times, but the scariest was when I was at the foot of metal stairs and it was in my hand. I swung it, and it flew out of the case, hit the sixth step, bounced on every step below it, and hit the wall. The batteries came out, as well as the cover for the secondary battery. For some reason, not only did it survive, but it seems to work fster! But please, do NOT recreate the above scene in hope that it will speed up your calc. If you do, I WAIVE ALL RESPONSIBILITY!!!!

Oh my gosh, that's hilarious! Yeah, I've dropped my 83+ a few times. Aside from a few scratches, it's fine!

Absolutely hilarious! I was literally laughing out loud! I have an 84+ SE, but I don't think I will attempt to repeat that. I love my calc too much to subject it to such abuse. Calc shells should be military grade titanium, not ABS plastic, with interior shock absorbers.

And that's why your new four-function costs $700.

Cool I should try that sometime mabye tomorow

Bad idea. You will likely end up with a broken calculator.

is 1+1=4 beacuase my calc says so why is this.

well, it's easy to write a program that will do that (even in BASIC). Combine that with a start-up program, and bam, there ya go. Either that, or you knocked a couple of Transistors loose (or added some, I can't remember how that works)

Well, if you actually tried dropping your calc on the stairs, then it should be obvious why.

That must have been a pretty hard impact if the secondary battery cover came off. ;-) Aren't those things held on with a screw?