A boot loader will always be installed on the fist drive seen--in your case sda. It can point to any drive that is part of the system for any supported operating system.
Which version of Windows are you using and where is it installed?
The official GRUB manual sets out the correct method that GRUB uses--which actually invokes Windows' own boot loader--at http://www.gnu.org/software/grub/manual/html_node/Chain_002dloading.html#Chain_002dloading
A procedure you may find that works is at http://grub.enbug.org/ChainLoadWindows
Note, though, that the Windows boot loader is normally in the boot sector of the first had disk. The GRUB install option should actually move this; in your system, if it has been overwritten instead of moved, you may be in for a reinstall of Windows itself (or a reinstall of the boot loader--which would in turn write over the GRUB instance and then it would have to be reinstalled as well.
Thus, try the things the GRUB manual suggests first.
By the way, there is a bootable image called "Super Grub Boot Disk" that is supposed to be useful in dealing with problem issues, by the way. It is available as a bootable CD image, or you can put it on a USB key using unetbootin: http://unetbootin.sourceforge.net
I have not used it, so I cannot advise you on how it works, but I have a friend who said it has been helpful for him on several occasions.
David
--- In LINUX_Newbies@yahoogroups.com, "KLaus" <klauslms@...> wrote:
>
>
>
> --- In LINUX_Newbies@yahoogroups.com, Roy <linuxcanuck@> wrote:
> >
> > There is too little information to troubleshoot from. We need to know what
> > your setup is. Boot loaders are complex and problems can be hard to diagnose
> > because everybody has a different setup. One person could have two drives
> > and another two partitions or more and the BIOS could configure the drives
> > differently. It is a crap shoot unless you tell us more.
> >
> > Roy
> >
> > Using Kubuntu 10.10, 64-bit
> > Location: Canada
> >
> >
> Hi Roy,
> UBUNTU created Grub 2 on /dev/sda. For Ubuntu itself GRUB works great.
> Ubuntu is installed on /dev/sda2
> Please explain what you mean by "setup".
> Charlyms
>
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