I'm experiencing some trouble using Cubase 5.1 together with the internal sound card of my iBook (the new white one...). Mostly I use the Tascam US-428 as soundcard and I'm a Happy Camper. But everytime I try to swich it to the internal card, my CPU starts to clip, even in an empty song. I tried installing new ASIO-drivers, but that doesn't seem to help...

If anyone has a clou.... your help is much apriciated!!!