I'll just mention that, assuming you are referring to this patch: http://cvs.winehq.org/patch.py?id=14198 it also causes a regression in Myst. Though I am not convinced the fault is in the patch, rather than the patch exposing some other problem.
Would you mind trying my experimental patch to see if it makes a difference? If it doesn't, could you also try the attached patch and see if that does?
Cheers,
Jeremy