Yes don\'t worry both are known, it\'s not your graphics card problem.
The first, it seems there\'s some problem with the spider net, like the frames don\'t erase and it\'s redrawn everytime depending on your position while the last draw isn\'t erased. (That bug is in BT reported by Tmed i think)
The second, it seems a transition bug between the sewers and the city surface. Simply those zones aren\'t perfectly connected, so, you can see those blue lines revealing holes, and while you try to exit you experience that effect, again, when those little holes in maps are corrected that think won\'t happen anymore. (It seems tough that this new update doesn\'t touch levels, so don\'t expect this to be fixed right with this update)
