What was the worst bug you've ever solved ?
itgoon: I once worked an issue with a crashing Exchange server.It had to do with a connection being reset in the space of time between the server checking if the connection was good, and actually using it.The client could reproduce it at will, and after a little bit of code at home, I could, too. Back at the office, no repro.It took a lot of back and forth (to put it mildly), but the problem at work was that the network was too slow - the server got the reset with plenty of time to "notice" it, and the crash didn't occur.Once we set up the repro on its own switch at work, everything failed in the expected manner.