Bethesda have detailed the first, post release, Dishonored Patch. this patch should be out from today across PS3, Xbox 360 and PC. The patch include the follow Big Fixes:
Support for
playing the game on multiple screens.
Game Settings are
now saved and restored properly even when using Steam offline.
Fixes for some
interactions with Granny Rags that invalidated nonlethal
playthroughs under certain circumstances. (Note: These fixes work
even for savegames AFTER the final Granny Rags encounter.)
Fix for a crash
that could happen during loading/transition between areas –
notably near Dr. Galvani’s house.
Reworked “Choke”
interaction to make it more reliable in valid contexts.
Fixed minor
localization issues (PS3/360).
Fixed global
post-process that sometimes worked improperly during some missions.
Fix for a rare
crash that could happen when killing a NPC with a possessed rat and
spring razor (PS3/360)
Source:
Bethesda Blog