Some time ago I downloaded and installed Kali Linux 1.0.6 (with Win32DiskImager) to a thumb drive. Works just fine on my dual booting Windows XP Pro / Linux 12.04 LTS Hewlett Packard laptop. Acronis OS finds the Kali operating system each time I insert the thumb drive into a USB port and boot from the cold state.

Things are not so nice with Kali Linux 1.0.7. My Acronis Operating System Selector says: Error, Boot Partition Is Missing. And, it shows the icon for an unknown operating system with a red X across the label.

What have I done wrong? Did I get a corrupt download? Is there a simple fix?