Thanks, Nate. That worked, I thought I had to replace the INF in another driver package in order to get it to work.
However, I have the same problem that Oldminer mentioned above: BFGminer find the Gridseed Orbs and mines fine for the first while. After about 30 or so minutes, the speed drops and they eventually stop accepting shares. I have read about the FIFO buffers and tried messing with those, but it seems to behave the same with them enabled or disabled. Any ideas? I'm using BFGminer 4.1 on Windows 7.
I've unfortunately never seen such an issue with any Orbs, Blades, or DMUs on any of the OSs I have setup for testing and dev.
It's occured for me first under win 7 & now under win 8, on 2 different PC's using both G-Blade & Orbs. I've looked at power supplies, Com Port settings, cabling..you name it. IMO its some sort of 'initilization issue' as either the miner/s will kick off and start accepting shares or they wont (until next time bfgminer is restarted & the device/s are reinitialized), though I have seen cases where a miner will accept a couple of shares then nothing.