I upgraded to Lucid a few months ago but have not been able to use my windows partition since. Everytime I select it from Grub2 it just goes to a grub style prompt and I can’t do much. I finally found a solution here: http://sourceforge.net/apps/mediawiki/bootinfoscript/index.php?title=Boot_Problems:Boot_Sector which worked beautifully first time and I’m now back into XP!