Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unreliable

I purchased the MP610 to use for powerpoint presentations & Movies. While it does OK on powerpoint presentations it is usually unable to read movies. The worst part is fiddling around with it for hours then it works for a bit, set it up in front of a group and it lets you down!At first I thought I might have done something wrong, but not even my geek friends could get it to work for more than a few minutes. It's been used for less than 60 hours but I'm ready to replace it with another brand. I'll never buy Benq again.