windows 7 dissapeared my GRUB

[bolex100]

I installed a dual boot system by installing Win7 and then Ubuntu 9.1. All fine until I needed to reinstall Win7. Now Windows has made itself the only OS. I presume that it has supperceided the GRUB.
How (where) can I put the Grub back - (bearing in mind that the only way to run Ubuntu is to run it fron CD)?

[drs305]

This thread should help:
How to restore the Ubuntu/XP/Vista/7 bootloader (Updated for Ubuntu 9.10) (http://ubuntuforums.org/showthread.php?t=1014708)

[bolex100]

That nailed it.

Thanks.