Strange blue shadow in preview.

Support Lighting and Rendering
1

Hi.
I have a problem, there’s stange blue shadow in preview mode. Scene is monkey and point light. Such thing not appear in render but does in preview. It is very annoying.

Can someone point whats causing it and how to fix it. Thank you.

Screenshot:

1.jpg1919×1039 543 KB

2

Can someone point whats causing it and how to fix it
Attach or post a link to your .blend file

3

Here’s blend. Thank you.
blue_shadow.blend (565 KB)

4

Does not appear on my machine. Maybe there’s a texture somewhere (environment, maybe?) that you have not included?