I just dove into the Apple world with an iMac (OSX 10.9). I plugged my trusty Tascam US144 in and expected to see the OS prompt for installation. Nothing. So I manually downloaded a driver from Tascam. After trying a few, the only one that seemed to install OK was version 1.13. The US144 GUI control panel also installed OK. However the device is never detected. The control panel tells me so and it never shows up in Reaper. I have rebooted many times, both with the device plugged in and without it plugged in. Any help appreciated.