Are you using Parallels Desktop 6? I'm don't know what you mean by "Install from: Bootcamp Partition".
Did you install Windows to the Boot Camp partition by booting your Mac with the Windows installer disk?
Can you boot your Mac into the Boot Camp partition?
What do the following commands in Mac OS X Terminal.app say about your Boot Camp disk (change 0 to the disk number containing the Boot Camp partition) ?
Code:
diskutil list /dev/disk0
sudo fdisk /dev/rdisk0
sudo gpt -r show -l /dev/disk0
Also check the information for the disk from System Profiler.
If you're creating a new virtual machine, try the following:
File -> New -> Boot Camp partition -> Windows 7 -> Customize settings before installation -> Create.
Hardware -> Hard Disk 1 -> Select Boot Camp partition. If the Boot Camp partition has multiple partitions then click Edit Partitions... and make sure the necessary partitions are selected.
You can also try:
File -> New -> Continue without disc -> Windows 7 -> Like a PC -> Customize settings before installation -> Create.
Hardware -> Hard Disk 1 -> Select Boot Camp partition.
Click to expand...