Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do not buy

I recently purchased an ATI 9550 video card and this HDTV card. My computer exceeds the system requirements for the use of the HDTV card but the DTV rarely works and when it does, the video is very choppy. I've talked to ATI tech support and their solution was to reinstall the software. I've probably done this 15 times and it has never worked. I've tried old drivers, new drivers, nothing works. Just simply trying to update the drivers for the ATI video card took weeks. Windows would not accept the most recent drivers for some reason. I've come to the conclusion ATI software is poorly written and I will never buy an ATI product again. I am continuously updating my computer and I've never had such a hard time getting a piece of hardware to work properly.