This is like a new car. Most of us will not take a new car to our mechanic but back to the dealer or maker.
I strongly suggest you exercise the warranty.
I have 2 two-week old Presario Model # of mine is: Compaq Presario CQ61-411WM Notebook PC. Mine is the one with major issues. There are several threads about this but I cannot find specific help with my type. My puter was fine until one morning I turned it on, everything powered up like normal but then shut right back off and would not respond again; no lcd lights, nothing. It didn't matter whether it was on battery (fully charged) or adapter. HP Support was no help. What should I do? Also my daughter's touchpad is not working right. When she powers up and clicks on her username everything's fine. But after she's logged on she can only scroll up and down but to click on anything she has to use the left clicker thingee. Sorry, I'm not very technical. Please help. Thank you very much.