BIOS headache

[Joseph Huber]

I've go a dual boot setup Debian (2.6.8-2 and 2.4.27-1) along with XP. GRUB 
boot loader. Long story - the short version of which is yesterday I updated 
the BIOS. Now on power up I end up with:

Master Boot Record Error.
Press a key.

Pressing a key does give me the GRUB menu.


I'm not sure what to include that might be helpful in identifying any 
problem... Can anyone provide any pointers in getting this fixed?

Joe Huber