i finally decided to clear my hard disk and start over again, i need to install both ubuntu 12.04 and windows 7. I currently have two problems: 1. I have installed ubuntu on the fresh 320 GB drive, but when i restart i can't boot into my ubuntu, except i insert the flash drive i used for the installation into my system during d boot process. 2. What's the best and easiest way to install ubuntu 12.04 on a seperate partition, and how do i go about the partitioning