[linux-audio-dev] Tascam US428 Continued hangups

Sorry to cross-post, but i didn't get any response on LAU, and was hoping maybe there're some developers that might have a better idea of what's going on. A while ago I was having trouble with my US428 hanging my system, usually directly after I tried to start JACK. Then lots of school-type stuff came up, and I set it aside for a while, and just used the built-in soundcard. Now that finals are over, I'm looking at tryint to get it to work again. So I downloaded the 2.6.10-rc2 source, applied the mm3, usx2y-0.8.7, and rt2 patches, used make-kpkg to make a nice debian-friendly package, and installed the kernel and modules. I also got the realtime-lsm module, and the package that has the scripts to set it up all nice and easy. So I boot it up, and aside from my touchpad not working, everything looks good. So I tail -f /var/log/messages, and plug in my US428. It seems to load the firmware and start us428control the way it's supposed to, and I can even start jack and run the xmms-jack out plugin and listen to music through it. Seems to work great. But as soon as I start ardour, I get this: kernel: Sequence Error!(hcd_frame=1152ep=10out;wait=120,frame=124). kernel: Most propably some urb of usb-frame 120 is still missing. kernel: Cause could be too long delays in usb-hcd interrupt handling. and qjackctl up and disapears, and ardour gives an error about being booted by jack. but I'm pretty stoked at at least my computer didn't hang(as it used to), until I unplug the device, and do some other stuff, and then it hangs. So I guess I'm in a slightly better position than before, but I'm getting pretty close to selling this, and saving up for one of the RME pcmcia interfaces. thanks for any ideas, -spencer