http://bugs.winehq.org/show_bug.cgi?id=29815
--- Comment #4 from 3vi1 winehq.org@eternaldusk.com 2012-02-08 07:11:17 CST --- Agreed.
Some bad news though: Further testing shows that dinput8 did *not* fix the issue. It seemed to do so in my initial test, mouselooking around my character for a few moments in K-7. But, I went back later last night and found that it was behaving in the broken manner again - especially when in the space view.
I'm not sure why it briefly seemed fixed. I've tried testing fullscreen, windowed, windowed-but-maximized combinations to see if there was some configuration I had used in my initial test that alleviated the symptoms (since I recalled switching video settings right before logging out)... to no avail.