Dual boot doesn't work anymore

[NoOp]

On 05/07/2010 04:09 AM, M. Fioretti wrote:
> On Fri, May 07, 2010 18:55:02 PM +0800, Goh Lip (g.lip at gmx.com) wrote:
> 
>> Please explain "dual boot doesn't work anymore". 
> 
> You are absolutely right, sorry, I should have not forgotten to
> explain this. Yes, what happens now is that Ubuntu was set as the
> default system, and it still boots and works fine if you don't do
> anything.
> 
> It's only when he powers up the computer and tries to chose Windows as
> the boot option in the grub menu that "it doesn't work anymore",
> meaning that nothing happens, he just sees the "black and white" grub
> screen frozen, until he gives up and turns power off. What exactly he
> meant by frozen screen, ie which messages appear, of course, I'll only know sunday.
> 
> THanks a lot for your suggestions, I'll print them up and take them
> along!
> 
> Marco
> 

Also read through this bug report.
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/496435
[upgrades of the grub-pc package can overwrite wrong MBR]