No way to boot into MS Windows hard disk

[Paul Smith]

Dear All

I have two hard disks in my machine:

* hda --> Fedora Core 6;
* hdb --> Windows XP.

In grub.conf, I have the following:

title Windows XP
        rootnoverify (hd1,0)
        makeactive
        chainloader +1

but I cannot boot into Windows XP. Any ideas?

Thanks in advance,

Paul