A:AnswerMake sure you're plugged into the graphic card on the back of the PC and not elsewhere. Ours has ports for both. The graphic card ports were capped, remove the cap and plug in.
A:Answerim pretty sure u have to connect it to the device first, then use the options by using the buttons on the bottom right of the display. i set my display to gaming
A:AnswerYour computer would need a HDMI port. If does not have a HDMI port, then you might be able to use an adapter. I would recommend partnering with a blue shirt member in the computer department at Best Buy.
A:AnswerThis monitor came with a 1 year warranty. If you need further assistance, I would recommend reaching out to HP Support. Here's the link to HP Support: http://support.hp.com/us-en . Click "Contact HP" at the bottom left of the page. Alternatively, you can reach them by phone at 1-800-474-6836.