Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The item did not work.

I have two new quad core computers, with a 23 inch moniter. After hooking up everything as per the instructions, it simply did not work. We tried everything, but nothing worked as per switching back and forth....very frustrating. It may be just one isolated incident, but for us, we were still out our time, plus an extra six bucks over the shipping costs to send back allowed by Amazon.