Just my 2 cents, but can you tell us the output of kernel-config show in xterm?
current kernel configuration: current frequency: 805 supported frequencies: 125 250 500 550 600 720 805 850 900 950 1000 1100 1150 min. frequency: 250 max. frequency: 805 avoid frequencies: 125 active frequencies: 250:24,180 500:36,360 550:39,400 600:41,430 720:46,520 805:50,520 850:60,520 900:60,520 950:60,520 1000:60,520 1100:72,520 1150:72,520 SmartReflex VDD1=1, VDD2=1 governor ondemand: ignore nice load= 0, up threshold= 95, sampling rate= 300000, powersave bias= 0