It took several tries and reboots before it finally flashed correctly, but it worked in the end. I first installed the latest driver (XP in VM) and then I used a firmware flash tool on windows XP SP3 in a virtual machine to flash the firmware. The version that I upgraded to was version 1.43 from My firmware was version 1.24 and that was apparently too old, I had to upgrade it. There was no light in the card and nothing worked. Mbox 2 registered correctly, but when I checked with dmesg in the terminal, I would get a timeout error message and the device would get ignored. My card didn’t “just work” so I had to do a lot of searching and I didn’t find the exact recipe anywhere, so to help the next guy, here’s my rundown on how to get it working. I’ve done a bit of work on trying to get Mbox 2 working.