#1: Both 'work' correctly and display nearly correctly.
Screen:
http://i42.tinypic.com/14ob0uu.jpg
Just the Titles are a bit bugged.
When i try to move them they react very laggy(but thats fixable by turning of visual styles in the options of the shortcut).
#2: Closing and reopening via Window->Helper doesn't work.
#3: Undocking doesn't work too.
Sometimes (at random) it works when i close and reopen MHS completely.
I tested it with the an old version of MHS, oddly its the same there.
The Disassembler worked alle the time up until now(v5.008).
EDIT:
I found the error:
The bug only occurs when the window is on my second monitor.
When its on my main monitor the window is not bugged.
If you want to fix it: the second monitor uses negative screen cooridnates, because it is on the left side next to my main screen.
Sorry for the confusion