Windows 7 - USB Device not recognized

Hey all,
I'm running win 7 64bit on a P6X58D premium mobo

I just build the computer and had a brand new SSD that i loaded windows onto. now none of my USB stuff will work
mouse/keyboard/thumbdrives/anything
none of them work, but when I plug them in windows detects them and just goes right away and says that they dont work usb device not recognized)

I've tried updating windows, disabling usb in the bios, turning off and unplugging and waiting a few minutes, installing all the drivers I can find for usb, nothing seems to work.

Please let me know if anyone knows whats going on and how I can fix it! thanks!!!!

Brand new install of M/board etc

Double check front (& rear) usb peripheral leads/connections. Could be wrong way around or connector misplaced & missing pins.

Did win 7 update all its drivers over the internet - not off your motherboard cd?

Are there any malfunctioned drivers in 'device manager' Try clicking on the very top icon and "scan for hardware changes" one or two drivers may be lurking and not loaded properly at first install.