Heratech

I just formatted my Vista install and installed Windows 7.Microsoft being Microsoft it assumed it was the only OS on my disk and replaced grub.To fix:

1. Download supergrub cd from http://www.supergrubdisk.org/index.php?pid=5
2. Follow instructions to either autofix grub (mine failed) or boot directly into Ubuntu
3. If autofix worked skip to step 5.
4. Once in ubuntu I used the command sudo grub-install /dev/sda (sda is my hard drive)
5. I then rebooted. Because I had Vista before the menu still pointed to that (which doesnt work). If you have the same problem continue to step 6.
6. Boot back into Ubuntu and do sudo grub-update

All done!