When creating a character under the new login system from the trunk client (r20452), the creation of a new character does not lower the character creation window.
This causes the Character Creation Window to have to be manually dragged out of the way in order to play. Better yet, you can reset your character indefinitely, essentially "rerolling" your random items (especially money) in order to abuse that. Or, if you get killed, just recreate the character and start fresh.
Anyway, it should disappear when the character is created.
Probably just a simple GTK lower command, but I'm not in a position to look right now.
I'll take a look at the client issue.
The fact that this is possible, though, points to a issue in the server state machine as well. If the client doesn't lower the window, it still shouldn't be able to do that.
Old client behavior restored in r20454. Keeping this open as we might need to investigate issues on the server side.
Should be fixed in trunk.