My problem happens apparently spontaneously. Sometimes huge sections of whitespace will output:
T
h
i
s
T
e
x
t
O
n
e
C
h
a
r
a
c
t
e
r
p
e
r
l
i
n
e
[end] Mudlet prints out some text one-character per line out of the blue. I have tried the Emergency Stop, and reinstalling.