Help - Failed Spin Up Time Test

Hi - I have been having big problems with my computer for a few days.  I think I finally have it narrowed down to my MyBook WD5000 (computer boots and runes fine with WD5000 disconnected).  Then ran the WD Diagnostics that showed a failure in the Spin Up Time test.  I’m pretty dumb about all this.  I cant seem to find out if this is something that can be fixed, or is the drive shot (I can actually use it a bit, sometimes).  I should mention that I may have screwed things up in the registry when I did a registry clean just when my problems started.  Below are the pertinent test results.  Appreciate any help in understanding this or a god resource to help me with this.

Test Option: QUICK TEST
Model Number: WDC WD5000AAKB-00UKA0
Unit Serial Number: WD-WCAPW1940155
Firmware Number: 07.01N01
Capacity: 500.11 GB
Test Result: FAIL
Test Error Code: 06-Quick Test on drive 2 did not complete! Status code = 07 (Failed read test element), Failure Checkpoint = 65 (Error Log Test) SMART self-test did not complete on drive 2!
Test Time: 16:53:54, January 18, 2010

Fail Spin Up Time
ID        3
Value        196
Threshhold    21
Worst        3
Warranty    1