Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't work

Make sure you buy this at a retailer that allows returns if it doesn't work. I bought one last week after a presentation. It looked and worked great at the presentation. I bought it because I had an immediate weekend-long project where I needed correct color. When I set up my new Eye-one/Display 2, all I could get was a "fail" on the emissions test, over and over - and never did get to testing my Mac LCD monitor. No response from the Eye-one "support" to my e-mails.I brought the gadget back to the store that then told me I had moved it during the test or the screen had gone black - and that was the only reason it failed. Neither of those were true. ...However, I did get a refund. So, beware. I'd like to give it a 4 or 5 on the basis of what I saw the demo do, but for how the one I bought worked, I'd give it a zero. Had the "support" even bothered to respond, I would have tried to work with them rather than doing a return since I really did want it to work. Average the scores for a 2.