Dear Sir: when i update my systerm to FB 7.0-currunt,i always found my cpu works under a low freqs.the fan do not work any more.i try to disable acpi,then i can't boot into the systerm,my mainboard halt! i'm using the notebook HPcompaqv3240,when i use fb6.2,it works well.i'm fraid to buildworld any more... so ,what shall i do now ?