boot page doesn't show another OS

[mlhazan]

Hi experts,
I installed Ubuntu 8.04 64bit on my hp notebook.First time it used to show me the both OS and I could select one.Then I installed KDE.But I wanted to go back to GDM so I delete linux partition and installed Ubuntu again but this time it does not allow me to choice the OS.I have Win Vista on my hard drive too.sda1 has the windows.Here are some config:

mlhazan@dEBx:~$ sudo fdisk -l
[sudo] password for mlhazan: 

Disk /dev/sda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x93995140

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1        6509    52275200    7  HPFS/NTFS
/dev/sda2   *        6509       19563   104857600    7  HPFS/NTFS
/dev/sda3           19563       23230    29458432    7  HPFS/NTFS
/dev/sda4           23231       24321     8763457+  83  Linux
mlhazan@dEBx:~$ sudo grub
Probing devices to guess BIOS drives. This may take a long time.

       [ Minimal BASH-like line editing is supported.   For
         the   first   word,  TAB  lists  possible  command
         completions.  Anywhere else TAB lists the possible
         completions of a device/filename. ]
grub> find /boot/grub/menu.lst
find /boot/grub/menu.lst
 (hd0,3)
grub>

My menu.list is:

## ## End Default Options ##

title		Ubuntu 8.04.1, kernel 2.6.24-19-generic
root		(hd0,3)
kernel		/boot/vmlinuz-2.6.24-19-generic root=UUID=0ffcfa1b-1e3c-4243-b16b-67845df7d9fb ro quiet splash
initrd		/boot/initrd.img-2.6.24-19-generic
quiet

title		Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root		(hd0,3)
kernel		/boot/vmlinuz-2.6.24-19-generic root=UUID=0ffcfa1b-1e3c-4243-b16b-67845df7d9fb ro single
initrd		/boot/initrd.img-2.6.24-19-generic

title		Ubuntu 8.04.1, memtest86+
root		(hd0,3)
kernel		/boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

can anybody help me to get that back?

[daark.child]

Add the entry below to your menu.lst file

title Windows
      rootnoverify (hd0,1)
      chainloader +1
      makeactive

[mlhazan]

it didn't work.It shows the windows on boot but if I select that it says unrecognized string.

[devils casper]

Did you type exact code?
Try replacing rootnoverify (hd0,1) with (hd0,0).

[mlhazan]

yeah i did it but same issue

[Geeth]

Try this

title Windows
root (hd0,1)
chainloader +1

[devils casper]

Boot up from SuperGRUB CD and select Fix Windows Boot Loader option. Does Windows OS boot up?