Hi all. I have a two years old Compaq Presario cq60 155ep With Vista HP, SP2, 32-bit. Since the last two or three months the cooling fan will start buzzing like mad for no apparent reason. It happens when the CPU is only at 20/30% and sometimes even when it's idle. It's not dust because I keep it clean. I thought it could be a software problem but after two OS reinstalls the issue persists. Any ideas? Regards, Jose.