Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Non-stop problems

I had this scanner for less than 6 months, and had non-stop problems with it. It would work OK for a while, but then the software would hang (I'd get a message saying that the computer could not find the scanner). For a while, reinstalling the software in "safe" mode worked, but eventually even that didn't work. HP tech support was useless (even after long distance calls to their Colorado help center). I finally gave up and bought an Epson 1200, which is awesome -- better resolution, no software glitches, and a competitive price.One thing to be wary of is the warranty on this scanner -- I think it's only 90 days. That's usually not a good sign!