Sounds like it's fried...probably should upgrade and spend .053 BTC on a 2 GH/s usb miner here:
https://bitcointalk.org/index.php?topic=382494.0 I've gotten 5 of them from the guy...he's quick and it takes just 2 or 3 days to get your stuff...
I've seen things like this and thinking about it, but have you seen where to buy it in Europe?
get another hub, or hub psu, it's not providing enough power for 2 devices
So putting the erupters back to computer's usb ports will solve the problem, too?