My new acer laptop is giving problem. The power connector seems to be loose and I am unable to charge it properly. My laptop is barely 3 months old and I think because of mis handling it happened that its loos in its socket. Please suggest me wht I do .. I don't to go to service center as then i have to give them my laptop and then it will affect work Please help.. can I fix it myself ?

It is in warranty, you should not mess with it. However, generally if there is no loose wire or fault in wire, then its connector being loose, can be fixed easily if its not a major damage, there are some small clamps inside the female / laptop power socket, you only need to adjust them slightly with some PIN etc and it makes things alright!