I was trying to sell my great long bardiche last night and I put it up for gold. I was using an HP touchpad to put it up and the guy I was talking with on steam said he would buy it. Anyhow I put the trade up and I guess at the same time he clicked buy I accidentally removed the trade scrolling down with my touch screen. He ended up buying a +3 great maul instead even though he clicked on the bardiche. He used the search tool so only bardiches appear on the screen and mine was only one up for gold. Any clue what happened?