Hi, I have the same problem and was wondering if there is any solution to this?
My sweet little flirc worked fine for a while, then all of the sudden started to cycle through "usb device not recognized" messages. I first thought it was my windows 8 box, so I moved it back to my Windows 7 pc where I originally programmed it. Same thing there, also tried my work pc with Windows 8 (Dell Presision M6600) and an old Windows xp laptop (Dell D630). Handed it over to three of our developers running Ubuntu - none of them was able to get it to work, Flirc says disconnected in Ubuntu.
So - any suggestions?