Hey all. This party still going on?
I've no direct experience with tascam units, but I have used interfaces that wouldn't light up or show power unless the correct drivers were there.
Mbox2 is an example, so while it
might be broken, there's still a chance it might not.
You said you've installed/uninstalled the drivers a few times. Are you 100% sure they're the most up to date version, and compatible with your OS?
A snow leopard version will probably install, but probably wont work, for example.
Are you plugging into a usb hub? If so, bypass it for now.
You can check system profiler to see if the device is recognised as attached hardware, and you can check audio/midi setup to see if it has drivers and is functioning.
(system profiler no longer exists in ML; Not sure about Lion. Go to apple/about this mac/more info/system report.)
Hmm. Other than that, is there a different computer you can test it out on? Even a friends? If possible do that, and the preference would be a different OS, or even better, windows.
At least that way you might have an easier time proving if the fault is hardware or software.
Hope everyone had a great day yesterday.