Instruct: Classify the given review into positive or negative sentiment.
Query: Viewsonic seems to currently have CRT problems

I have had great success with Viewsonic in the past. However, last September I purchased a G810 that came DOA. Its replacement is currently having problems too. My Mitsubishi 91TXM finally died after 6 good years of service. I replaced it with a Viewsonic P225F-5 that came with 1/2 of the screen very blurry. I had the factory replace it and the 2nd one came with 2 very dark bands running vertical through the screen -- about 3-inches wide each. It is going back too. I'm going to try a Cornerstone P1750 next.