[ubuntu] Help! No Usb devices work (11.04)

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http://ubuntuforums.org – I am running an HP Dv4 1465dx laptop with Ubuntu 11.04 (Wubi) and I cannot use any of my USB devices. None of the devices are detected when using 'lsusb' in the terminal. I have restarted the computer several times, but no devices work. I have a usb mouse and flash drive plugged in, the devices appear to be powered but the system will not detect them and I cannot use them. Please help if you can. (Hardware)