Quote from: pirate1 on June 10, 2013, 08:58:20 PM

Ok, I have a noob question. I am running a BitForce Single (FPGA), and two 6870 graphics cards mining Bitcoins. I have been using cgminer-2.10.5. It has been working fine. However, I am getting ready to receive my new BitForce Single (ASIC) and updating in preparation. When I try to use cgminer-3.2.1 I get the following message:

[2013-06-10 16:26:47] Started cgminer 3.2.1
[2013-06-10 16:26:47] USB init, open device failed, err -12, you need to install
a Windows USB driver for - CMR device 2:1
[2013-06-10 16:26:47] Icarus detect (2:1) failed to initialise (incorrect device?)
[2013-06-10 16:26:47] USB init, open device failed, err -12, you need to install
a Windows USB driver for - BAS device 2:1
[2013-06-10 16:26:47] BitForceSC detect (2:1) failed to initialise (incorrect device?)
[2013-06-10 16:26:47] USB init, open device failed, err -12, you need to install
a Windows USB driver for - BFL device 2:1
[2013-06-10 16:26:47] BitForce detect (2:1) failed to initialise (incorrect device?)

I can still use cgminer-2.10.5 with no problem. I don't understand what I need to do or why one version works but not the other. I do not know where to look for or how to install the drivers. I have the latest updates. As I said, a noob question, but I still don't understand what I need to do. I know it is probably something simple and straightforward but I would appreciate some help.

Have you tried downloading the USB driver from BFL's website?