I booted Ubuntu from a flash drive and then installed it from there.
After the installation was complete and I restarted, but I never get prompted to use Ubuntu. I even pressed F8 to get to the screen to select an OS and Ubuntu is not listed.
My laptop now insists on doing a disc check each time I start it up which is highly frustrating.
In Windows 7 I can see that the amount I allocated to Ubuntu has been subtracted from its partition size.