[linux-audio-user] Frustrated bigtime

I just got a new laptop. It's an Asus A6U with an AMD64 Turion ML-37, which runs at 2G and has 1M L2 cache. The system also has 1G of 333Mhz RAM. The HD is a 5200 80G drive. I have installed linux 2.6.12, which comes with the RT-Limits patch and I patched PAM myself to use it. If I run jackd without realtime priority it sounds like shit but it works. If I try to make it sound better with -R then ardour gets disconnected from jackd because it is "too slow". Here is jackd's output: subgraph starting at ardour timed out (subgraph_wait_fd=22, status = 0, state = Running) **** alsa_pcm: xrun of at least 39.900 msecs **** alsa_pcm: xrun of at least 10.455 msecs **** alsa_pcm: xrun of at least 2.649 msecs **** alsa_pcm: xrun of at least 0.028 msecs Doing web searches on this tells me to update, but these are very old messages. It isn't CPU frequency stepping because the CPU is running at top speed via userspace setting. I suppose it could be acpi but now I can't find the message that said how to turn that off... Shouldn't this machine be more than adiquate for *playing* audio from ardour?! What gives? Any help would be great.