Getting the 80Gb drive to work with the old drive may be the simplest way out. You said you moved the jumper to single drive, so presumably it was initally set to something else. Your best bet is to put both drives on CS (Cable Select), if that doesn't work, try setting the 10GB to MAster, and the new 80GB drive to SLave. If those don't work, set up for original configuration, and (assuming you have a USB port) put the 80GB drive in an external USB to IDE case. That should work, but might not be satisfactory to you.
There are numerous other entrys about IDE drive cables and jumpers which are probably more informative than I can be, since I only use SCSI. Search for them for additional help.
Before you started doing any of this, I presume you got a good BACKUP of the 10GB Drive... HMM?
I installed a larger harddrive (80 gig) into my hpvectra lastnight. I was going to install it alonside the existing 10g harddrive but for some reason it wouldn't work. So i removed the old harddrive. reset the jumper to single drive. AFter running the install disk from western digital I now have an error- NTLRD is missing.
The only os I have is a 98recovery cd from hp and the xp upgrade cd. I put in the recovery cd but nothing changed. Can anyone help me?

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