Sorry for the delayed response! I didn't see a reply. for some reason.

Here's the printout.

ubuntu@ubuntu:~/Downloads$ lsusb
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 003: ID 05ac:850b Apple, Inc.
Bus 002 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 005: ID 0781:5530 SanDisk Corp. Cruzer
Bus 001 Device 006: ID 05ac:1006 Apple, Inc. Hub in Aluminum Keyboard
Bus 002 Device 003: ID 05ac:8403 Apple, Inc. Internal Memory Card Reader
Bus 002 Device 004: ID 05ac:8242 Apple, Inc. IR Receiver [built-in]
Bus 002 Device 005: ID 046d:c52f Logitech, Inc. Wireless Mouse M305
Bus 001 Device 007: ID 05ac:8215 Apple, Inc. Bluetooth USB Host Controller
Bus 001 Device 010: ID 05ac:0220 Apple, Inc. Aluminum Keyboard (ANSI)

BTCMiner with '-i' produces no connected devices.

Edit: I'm running Ubuntu 13.04 on an iMac, booting and running Linux from a flash drive. I downloaded the .jar from ztex - am I missing something? Should the fans automatically kick on when I plug it in? Should the LEDs flash?