Im Going Mad!!

[SeasickCharlie]

I get this, too. Enter is the last button I press. Then I crash.

[Stella Ruby]

Pressing enter also crashes me so maybe it's a "feature".

[searage]

it's the same bug as ESC, the wrong window in the game has focus (i think after an add pops up) if you happen to press either ESC or ENTER before the focus is reset, blammo, your client shutsdown.

click the second skull to start typing to avoid pressing ENTER whenever possible.