I had installed Windows 7 on a separate 20gig partition, and I'm absolutely loving it! Plus I can now dual-boot, with my original WinXP residing on the C: drive. But I'm running out of disk space on D:, and I was able to shrink C: and expand D:. But now I would like to make D: not just a Boot Partition, but an Active System Partition, without losing my ability to boot into Windows 7 (since it was created on a separate D: partition, not the current Active System C: Partition). Any advice?