I've had this issue since I've installed BL onto my new laptop. It's a 13" refurbished macbook pro with an Intel HD 3000 Graphics card.
here are pictures of my problem.

Okay, nothing looks too bad right now. Let's move the cursor down a little bit...

oh dear.

This includes the interior of builds as well.

Seems fine now...

alas, it was not meant to be.
Please help me sort this out. It makes building difficult at best, as my eye catches these graphical errors and makes it difficult to focus.