HI, i just recently got a COMPAQ Presario CQ56 Laptop this past christmas brand new, i use this laptop quite frequently on my lap when laying in bed. one night i was watching youtube videos, when all of a sudden i heard this god awful grinding noise coming from under my laptop right by the fan. i stuck my ear right next to the fan and thats where the sound seemed to be coming from. if i turn it off and let it set over night, and then turn it on in the morning, there's no noise. but only when i use this laptop for like 1-2 hours does the noise come back. somebody please help me cause this noise sounds bad, and i just got this laptop not even 3 months ago. thank you!