In Trine 2, water surfaces become a flat purple or blue at certain angles.Pictured below.
Also, the frame rate is generally not very good. I'm running a high resolution, but with no AA, and only 4x AF. Should be getting 60 at least but I'm getting more like 25 to 45.
Asus HD6770 with Catalyst 13.1
Gigabyte P35-DS3R Revision 2.1
Lubuntu 12.10 64-bit
6 GB RAM