Seems if you are entering a post and your cookie/session times out and you have to re-enter and then subsequently get the password wrong, you are presented with a screen that tells you to "hit the back button and correct it" - yet, the expiration on the previous page is set such that, when you hit the back button, the page isn't there anymore.
Also, along those same lines, I've lost a lot of PMs and messages (mostly entered on the "quick reply" area) to my session timing out. I'm forced to cut and paste them in case the board decides to "eat" them.
