http://bugs.winehq.org/show_bug.cgi?id=10857
--- Comment #5 from Dan Kegel dank@kegel.com 2007-12-23 19:05:52 --- The original poster now says: "3. Just now I tried the quick mask and it is working in Wine but not in Crossover. (It was not working in Wine yesterday - don't know what's different). The behavior is that I am only able to add to the mask area. I am not able to remove any of the mask area. While working on a quick mask, I am unable to change the brush size as described above [i.e. in bug 10856].
FWIW, I am able to zoom while the quick mask is active."
Hmm. Well, it's working for him today. Let's let this sit for a while to see if it comes back for him, and close it in a week or so if he can't.