I know this should be in the Hardware Forum but nobody is there. I ran WD Data Lifeguard test and although my smart status is OK on the quick test I get this: Test Option: QUICK TEST Model Number: WDC WD6401AALS-00L3B2 Unit Serial Number: WD-WCASY3591345 Firmware Number: 01.03B01 Capacity: 640.13 GB SMART Status: PASS Test Result: FAIL Test Error Code: 06-Quick Test on drive 1 did not complete! Status code = 07 (Failed read test element), Failure Checkpoint = 97 (Unknown Test) SMART self-test did not complete on drive 1! Test Time: 17:50:59, March 17, 2010 but I ran another test and get this:Test Option: EXTENDED TEST Model Number: WDC WD6401AALS-00L3B2 Unit Serial Number: WD-WCASY3591345 Firmware Number: 01.03B01 Capacity: 640.13 GB SMART Status: PASS Test Result: PASS Test Time: 19:49:22, March 17, 2010 Should I RMA this drive or not? It seems OK. I did try another sata cable and a different sata port. My other drives test OK. This drive (Black Edition) has been the fastest HD I've had by far, but I have gotten a couple BSOD so I moved ALL my stuff off it and ran this test. I don't understand why it reports smart as Pass, and the extended test as Pass, but fails a quick test. Can someone more knowledgeable inform me?