Rendered imaged has weird shadows I've got a sphere with a texture and a material and I'm using blender render. This is how it looks in material view.

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And this is how the rendered image looks.

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What am I doing wrong?

Heres my .blend file : http://www.mediafire.com/download/gly7535pswrnryj/problem.blend

Note : Im posting the blend file because I've got an integrated graphics card and I've heard blender has got some issues with these. So maybe it works for you, and its just my computer.
There are 2 spheres on top of each other - one textured, one pink.

To move them apart select 1 vertex in edit-mode and then select all connected to it with CtrlL. This will select only 1 sphere so they can be separated.

You can also hide selected with H and unhide with AltH so you don't have to move the mesh.

Delete the one you don't want(pink probably).

The 2 spheres were there probably because it was a game-engine model with single-sided polygons - so the textured sphere was for outside and the pink for inside surface. The renderer will render surface from both sides and they are z-fighting.