Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sony VAIO laptop shutdown problem

I thought I was buying a top of the line laptop, I love the large display, but that's the last positive thing I have to say about my PCG-GRZ660.Just over a year of owning it I started experiencing random shutdowns. Now at 1 1/2 years it shuts down constantly. The problem - OVERHEATING. Apparently it's a well known problem, and I can't get any support from Sony. Lookup "Sony VAIO shutdown" online and see all the folks that are experiencing overheating problems.I'm very disappointed with this laptop and would not recommend a Sony laptop to anyone.I think I will go back to ACER laptops, they have worked flawlessly in the past.