I have had 13.10 and Win 7 dualbooting for about a week now - everything was perfect. Yesterday - I select Ubuntu from the grub menu - usb keyboard is lit. Right after the selection - keyboard goes dark - ubuntu splash screen, then login screen - no keyboard or mouse. The KB works fine in Win7 and was working fine in ubuntu - until now. What gives? Haven't made any bios changes - usb legacy was always enabled. I'm at a loss - why would the kb/mouse just stop working when linux launches?