Patch 02 released. Download it here:
Patch 02 for Windows Version
Patch 02 files for Mac and Linux Version
You don’t need this patch if you bought the game after November 28 2009.
Instructions for Mac and Linux  users:
1) open Machinarium folder.
2) open folder 00 and rewrite all older files with the new ones from the patch.

IMPORTANT NOTE: don’ t replace the whole directory but open it and update the files manually.
Issues fixed:
level Waste Dump: fixed logo over game and possibly frozen game while interaction with the rat.
level Furnace Room: interaction with right-side controller is now possible only when really standing near by.
level Alley: fixed possible lost of barrel while stopping game during animation of pulling the barrel from the bar.
level Sewer Room: fixed one incorrect state of water pipes.
level Bar: it’s easier now to beat the “bar bot” in 5-in-a-row game after several looses.
If you don’t have Patch 01 you can download it here.