Bug#487445: Bug #487445 grub-pc: freezes after two keystrokes

[Felix Zielcke]

Hello,

Now with seeing that report again I remembered again this commit 
upstream:

2008-07-21  Bean  <bean123ch at gmail.com>

        * kern/i386/pc/startup.S (gate_a20_try_bios): Change test order for
        a20. Run keyboard test last, as it will cause macbook to halt.

Though I don't know anything at all if this change affects your keyboard
problem or not.
This is included in our current lenny version 1.96+20080724-7.

Please test this version and like Robert already suggested try without
chainloading and grub2 directly in the MBR.