Thanks for using our Answers forum. I have this article, All about lights on front of Slingbox. Hope this helps, if not, feel free to contact us at 877-GoSling(877-467-5464).
Sling Moderation Team
Don't know if you recieved your answer yet, but I had same "power light flashing" problem, ordered new power supply and all is well, 2 lights again. I also had a problem controlling my cable box, so I also ordered a new I/R blaster (new one has 4 heads) and that corrected my control problem. Hope this helps, as I was not about to pay sling just to tell me to order a new power supply.