Do you mean on paotz' server?
I have the same problem, everytime I log out of the game (for whichever reasons), when I start logintool again it doesn't work. It minimizes to the taskbar, and after a few seconds pops back up (no black screen though).
If I delete my dekaron folder, and re-extract the rar file, it'll work again, until the next time I log out O.o
It's really annoying, I'd give hugs and/or a cookie to whoever can tell me how to fix this.
