MacBook Pro Problem

hello,

started few weeks ago, every once in while these blue checker boxes flash on screen , disappear. today stayed. luckily able grab screen shot.

have run diagnostics , clears, reset pram.

suggestions before call apple? have attached photo below.



mid 2010 13 inch
nvidia geforce 320m

 

how attach image mr post.​

mbp it? 1 8600m gt nvidia gpu?
macbook pro: distorted video or no video issues

 

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