I recently installed Windows 7 RC on a 1.5TB hard-drive first. Then installed Ubuntu. During system startup and on the boot manager screen (where one can select the OS to load) - the screen simply does not respond to any key input. I can't select the OS that I want to boot up. Instead it always boots up the default Windows 7 after the wait time of 8 secs.
Please suggest on how to resolve it.
Initially I was using a wireless keyboard and then changed to a wired keyboard. Still no luck.