[ubuntu] Unbuntu Installs but no Grub Loader

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http://ubuntuforums.org – OK, I've used Windows for 17 years, but I am new with Linux so please understand my crass stupidity: I have had Unbuntu on this desk PC for 8 months or so & actually did a couple of re-installs at the beginning as I messed up, sorted the swap partition OK, re-sized the Linux partition OK & things when smoothly including the update in April. I use Linux along with Windows 7, Unbuntu is installed on the second of two 1TB drives, Windows resides on the first drive, on a 50 GIG partion along with a large partition for music. Drive two has 3 partitions, one for Acronis images, another for (Hardware)