#5 Doesn't actually close

[Slokunshialgo]

After htting the X (Close) button for the eBook Writer
window, the main window is closed, but it is still
running somewhere in the background. The only way I
can close it is to use the task manager and close it
from there.

I found this by closing it at one point, and trying to
open it again later, and being told that only one
instance is allowed at a time.