[ubuntu] Tascam US-122 (external sound card) troubles

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http://ubuntuforums.org – I've been trying for SO long, scouring every bit of info that comes up, and still nothing seems to be working. My external sound card/interface just WON'T work. :( I followed these instructions: https://help.ubuntu.com/community/TASCAM_US-122 and I get the light on, it stayed on when I plugged/unplugged it, sometimes I even got sound through it via the preferences > sound > test sound stuff... -- but most of the time it would just freeze my computer, and I would need to hard reboot it. I found a way to uninitialize it, and then followed these directions: http://alsa.opensrc.org/index.php/Tascam_US-122 -- subbing the most recent alsa-firmware (1.0.20) in. Now I don't get any sound, and it's still freezing when I try and test it. I really need some help. :( (Hardware)