Can't be a Wine issue -- tested 2.14 (current), 2.12 (before updating to .14), 2.7 (what my 7 servers are using which aren't having this problem), 2.3, 2.2, 1.9.23, and 1.9.19; they're all doing this.
I'm going to try a clean installation and see where that gets me. If it's still happening I'll just run a full system update and report back.