I already have the version corresponding to my pc installed, all good the first few days but today when I tried to pass the game on with amy, the water thing happened again and changed to another character but my pc is still Windows 7, and I was wondering if it can remove dependency from directX
The water has no textures...it's a custom DirectX effect that draws the deformed background on the water box.
I'm sorry, but at the moment I have no idea what can cause that problem on your end.
EDIT: I'm working on a compatibility option to use a simpler water effect. That may solve your issue once 1.08 will release.