What is the grub error?

Might try these suggestions: http://www.hungry-hackers.com/2009/02/how-to-safely-uninstall-linux-when-dual-boot-installed-with-windows-xp.html

error #17. According to that link you must boot to a win98 floppy or a xp cd. Then at the command prompt type 'fixmbr'. That sounds like that would fix the problem, but I don't know how to get a command prompt from an install cd.

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Mike Hoy