I just bought a Dell inspiron 7720 with 1600 X 900 resolution. Is this not a HD resolution? I know it obviously isn't 1080 but I was trying to watch a movie last night and video looks horrendous. Very pixelated and grainy. It was a DVD on windows 8 under cyberlink power dvd 10. When I looked at the source information under the program is said 725 x 480 resolution. Can anybody help? I am about to the laptop back because of the horrible quality of videos.
If the video quality of the video you were watching is only 725 x 480 the quality will be rubbish. Try going onto YouTube and watching a 1080p or 720p video and it should be fine. If not, try asking the people who you bought it off.
The video had horrible quality because of the video file, not the laptop. The above users recommendation to check whether the laptop screen is good is very nice: going into youtube and watching 1080p will most certainly confirm or deny your worries.