weird subsecond hangs with 9.2 and asus k8v

Hi, after installing 9.2 on my asus k8v se deluxe i have weird subsecond hangs (100~300ms) about every second. The following kernel message seems to be directly related (currently 2.6.8-24.3-default): warning: many lost ticks. Your time source seems to be instable or some driver is hogging interupts rip handle_IRQ_event+0x24/0x60 Does this ring a bell ? Note: no problems with 9.1 Greetings Jens.