Just got my pass-through for my SE gold and hooked it up to the computer with my old atomizer took a nice puff then put it on the desk to get a glass of water. When I came back and picked it up it was so hot it burned my hand and I looked closer the plastic cart was melting! I jerked it out of the pc and let it cool. Now (15 mins later)I am using it with the new atomizer and it is working fine but I am nervous. What do you think caused it? Old addy? Think it is safe? I do know I wont be leaving it plugged in unattended.