124.888660] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 125.076538] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 125.264421] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 125.452391] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 125.640370] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 125.828326] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.016419] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.204381] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.392601] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.580451] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.768414] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 126.956380] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 127.144602] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 127.388060] usb 1-3: new high speed USB device using ehci_hcd and address 74
[ 127.456382] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 127.644392] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 127.832358] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 128.020335] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 128.208422] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 128.396394] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 128.584357] hub 1-0:1.0: unable to enumerate USB device on port 3
[ 128.828078] usb 1-3: new high speed USB device using ehci_hcd and address 81

This message with different addresses is about 3 full pages long and none of the USB flash drives, or my camera work. I cannot see the attached devices at all, or mount them manually. I have a USB mouse which works fine....I have no idea what is wrong.
Thanks
Sam