http://bugs.winehq.org/show_bug.cgi?id=32092
--- Comment #16 from Rob McCathie korrode@gmail.com 2012-12-02 11:53:56 CST --- The bug also occurs when hovering over a usable quest item.
Example:
http://www.paradoxcomputers.com.au/stuff/swtor_wine_bug-01.jpg
In the image you can see the quest "The Last Defenders" has a usable item associated with it. You're meant to target the remains of a dead droid and then click the icon. Within 1-2 seconds of the mouse being over it the bug occurs and the game/wine must be forcibly closed. Due to the 1-2 seconds you get prior to the crash occurring, it is actually possible to complete the quest, it's just going to require 6 restarts of the game to do it, lol.