Tascam US-144 Not Working
I have recently updated my iMac to 2.7GHz Intel Core i5 OSX 10.8.4.
Previously I had a 2007 Intel iMac. I had a Tascam US-122 Audio-Midi interface which I used with Logic Pro. When I updated the iMac, the Tascam wouldn't work, so I acquired a newer model, the US-144 mkII. I downloaded and installed the latest drivers and firmware update, which are said to be compatible with this version of OS X.
However it is not working. In the Sound control panel, I'm seeing this:
If you select it, you get no output.
In Applications>Utilities>Audio MIDI Setup I can see the device, but none of the sliders respond:
In the devices control panel, I noticed the following error message:
This device is USB 2.0. Anyone have any ideas of how to trouble-shoot? I will try and ask Tascam but they don't appear to have end-user support, and I bought the unit via mail order, so I can't go back to the retailer. But as it stands, this unit is currently an expensive paperweight.
iMac, OS X Mountain Lion (10.8.4)