Awesome, Glad to hear it!  Is the original SD card we shipped actually a "no name" Micro SD inside an adapter with the Raspberry Pi logo on it?  We got those specifically because they are "official" RPI cards, so they'd be the most likely to work well, but it's turning out that they stink.  We'll test some different ones for the next batch.

BTW, any time you build a new image, the first time it boots, it makes a new bitcoin wallet (viewable on the "wallet" page of the web UI), and begins mining with that wallet.  Be sure if it made any BTC that you don't forget to collect it!  If you make a backup from the settings page, the wallet is also backed up and restored.  If you want to change to a new wallet or mining username, that's done on the "pools" page of the web UI.  If you ever restore from a previous backup, it puts all your original settings in, so it's a good idea to make a backup once you get things dialed in like you want.  (In case an SD card dies or something.)

-Phil