[linux-audio-user] Edirol UA-25 and my USB hub

Hi fellow LAU'ers, I'm expieriencing strange things with my new Edirol UA-25. I am running Debian SID with a vanilla 2.6.10 kernel. The device works really fine (it has his own USB controller and is directly connected to the board) when I try to playback _or_ record @ 24Bit/48khz. But as soon as I try to do both things simultaneously (using arecord and aplay) - after about 2 seconds - I get this: Jan 9 15:06:23 vicviper kernel: hub 2-0:1.0: port 1 disabled by hub (EMI?), re- enabling... Jan 9 15:06:23 vicviper kernel: usb 2-1: USB disconnect, address 3 Jan 9 15:06:23 vicviper kernel: cannot submit datapipe for urb 0, err = -19 Jan 9 15:06:23 vicviper kernel: usb 2-1: new full speed USB device using uhci_h cd and address 4 Jan 9 15:06:26 vicviper usb.agent[5253]: snd-usb-audio: already loaded to make sure it isn't a hardware issue, I tested the device with Audacity in Windows on the same machine, and that worked just fine. Sooo. Does anyone have any idea what I could try to fix this problem? It sure does render Ardour unusable for me, which is - well - bad. thanks alot, Adrian