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.