http://bugs.winehq.org/show_bug.cgi?id=17883
--- Comment #14 from Tibault Damman tibault.damman@gmail.com 2009-06-19 04:33:44 --- Should a dev want to test and fix this bug, I've got a coupon for a free game here which I'll gladly hand over :-) Just drop me an e-mail (and prove you're a dev ;-))
On a side note, this bug may be similar to http://bugs.winehq.org/show_bug.cgi?id=17589
You can't use the same workaround from StrongBad (the older game) to activate Wallace&Gromit (the newer game) though, but the activation system should be pretty similar.
It would be awesome if we could get this fixed before the new Monkey Island games arrive :-)