Since you mention it, I keep getting logged out for some reason, and I've changed my PW 3 times, hacker is unlikely cuz everything I have is still there on my other account. I have 2 you see, and this happens to both of them.
there will be times when the deviant art site can actually screw up on some Ip address's. My biggest concern is the advertisements because the Anti-virus software is actually giving me alerts within certain banners and not only this but also my Spyware programs... not sure if it happens to you but its started to concern me, its not like its downloading anything but it kinda alerted me about some Dialings!.. which i ever saw!