[ubuntu] 13.04 in 1225B only register keyboard and mousepad if you press them during bootup?

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http://ubuntuforums.org – I'm not sure where to put this, or to say whether this is a problem and a bug. Basically I installed Ubuntu 13.04 in Asus 1225B. If I just let it load after selecting it at Grub, the keyboard and mousepad won't respond at the logging screen, even after logging when I'm using external mouse (and onboard screen keyboard). But if after I select it at Grub, and press few buttons and touch the mousepad, until some characters appeared at the screen, I can use the keyboard and mousepad. Its not that urgent, maybe just annoying. So I was wondering If this should be filed under bug section or somethi (Hardware)