[danlisa]

Have you tried repairing the MBR on the original HDD?

1. Insert the Windows Operating System Disc into the optical (CD or DVD) drive.
2. Press and hold the Power button for 5 Seconds to turn off the PC. Then press the Power button again to turn on the PC.
3. Press the Enter key when prompted to Boot from CD .
4. From the Windows Setup Menu, press the R key to start the Recovery Console.
5. At the C:\> prompt type FIXMBR then press the Enter key to continue.
6. Press the y key then press Enter when asked if you want to write a new MBR.
7. Once the MBR is successfully written, restart the notebook PC by pressing the Power button.

Failing that, I'd suggest calling HP Suport. Even if the laptop is out of warrantee, they should be able to help.