Sounds like you lost the 12V power. Try resetting your power supply and try again. Maybe a fuse blew?
Anyway, the lights keep blinking because they are 5V powered via USB.
It will show accepting work to be done but won't do any because there's no 12V to power the chips so they can hash.
Hmmmm....well I bought a 12v 1a power cord on Amazon since someone told that if I was only going to be scrypt mining, I could get the cheaper, 1a power supply. Do you think this could be it? I tried unplugging everything, waiting a couple minutes, then plugging it back on, but still no 12v. Is there another way to reset power supply? Or force 12v?
I'd bet 5 btc your power supply is too small. Go get one with higher amperage and try again.
Fml. The one I got is 2.1mm....but all the 5a ones I see on Amazon are 2.5mm, like this:
http://www.amazon.com/12-Volt-Power-Supply-Standard/dp/B009ZZV6TA/ref=sr_1_3?ie=UTF8&qid=1396741285&sr=8-3&keywords=12v+5+amp+power+supply
Should be ok?
Both fit....I have used both.