I have a pair of Corsair CX750 power supplies (4 pcie connectors and rated for 46A on the +12V rail).  Thoughts on using the two supplies to power one unit?

Thanks!

Yes, I downloaded it from the link in the guide, then copied the files from the 'cgminer-4.3.3-update-v2.0' folder into the cgminer folder.  (should I have not done this?  I've tried both ways, and neither worked)

Its academic at this point...I took them home and tried a different computer and it took 10 minutes to get all 5 units up and running.  I was hoping to run them at work, because the electric bill at my shop is a business expense.  

I will admit that the computer at work has many USB devices plugged into it already, and the drivers have been installed, reinstalled and uninstalled so many times its amazing it still functions.

Totally stumped with my R-Box's

It shows up in Windows Devices after I run the zadig app in the cgminer folder, but cgminer can't find the device.

Tried multiple cables, power bricks, reboots, driver installs and R-box units (I bought five...just trying to get ONE to function)

my cg.cmd looks like this:

cgminer.exe --icarus-options 115200:1:1 --anu-freq 270 -o stratum.mining.eligius.st:3334 -u (my payment address) -p123

Any advice would be greatly appreciated.