um, VISTA?

I've actually had that reported as a bug in our software on more than one occasion (of course not worded like that, the truth only comes out when questioning past the "it doesn't work" stage).

And in one of those cases that led to a new requirement that the software should not fail in case of power failure (not kidding).

I had an amusing one today. I'm writing a SMS sending program. It's a remake of a program I wrote ages ago for the same purpose, but the wobsite to which the program interfaces changed its layout so I had to change my program. Anyhow, cookies are now used by the site to store the numbers of the recipients and the website automatically deletes them after it has finished sending the message... but, of course, I forgot to... so the text messages that were sent went to everyone to whom a text was sent for the duration of the session... increasing exponentially (WRT new recipients). I didn't notice this and gave the program to some friends of mine. Definitely worth it. I was tempted to leave it in and not tell anyone