Assassin's Creed Director's Cut and Wine

I've been pleased that this GOG.com release of Assassin's Creed works out of the box on Wine.  However, a recent update, Wine 1.7.30 on Ubuntu via launchpad, has a regression in that the sunlight in this game is way too bright. It's making the world bleached white. I used POL and downloaded an older version of Wine to fix this issue.  I downloaded Wine 1.7.27 which didn't seem to exhibit this issue.  Word of warning to those using Wine to play.