This should have been fixed in 4.10 judging by the
Change log.
quote:
Originally posted by http://www.msgpluslive.net/download/changelog/
Fixed: no more unnecessary extra space character when inserting bbcode tags with a keyboard shortcut.
Btw, I tried testing this once reading your post and it didn't have the white space (like I know it did before MP!L 4.10).
EDIT: for some reason my background in my chats is not white (255,255,255), it used to be a light grey so I could tell the difference. But I can select the "white space" so I know it's there.