The caps lock and scroll lock LEDs blinking indicate a kernel panic. Press
Ctrl-Alt-F1 then unplug the power adapter and see if you get a backtrace.

On Thu, Jan 6, 2011 at 7:35 AM, Simon Royal <[email protected]> wrote:

> Hi
>
> I have an R31. It came with a dead battery. I bought a genuine IBM one from
> ebay and it works, but if you pull the lead out while it is charging it
> locks the laptop up.
>
> Two of the lights under the screen - caps lock and the screen one - flash.
>
> It does it in Ubuntu, but works fine in XP.
>
> Any ideas?
>
> Simon
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