Unreliability

Things to look for:
1) The motherboard (has a bottle neck that cannot be fixed)
2) The hardrive array (it's not giving you at least 200MB/s)
3) The hardrive is connected to a controller that is defective by design (meaning the motherboard manufacturer used a chip in the controller that consistently fails under particular conditions, Non-linear editing is one of them.)
4) After all was installed correctly, the wrong Quicktime was installed or was upgraded (with or without your knowledge...)
5) Your RAM is incorrectly installed in your motherboard. Certain motherboards are designed to only have RAM sticks installed in ONLY slots 1,3,5, and 7. Other motherboards are designed to only have a certain maximum amount of RAM installed in a particular slot and your particular stick of RAM may have surpassed that amount.
6) Your ATi Radeon X1650 Video Card wants the same resources your Matrox hardware wants. (How this could possibly happen is a mystery, but a different motherboard model may fix this.)
7) Your power supply is to small (the wattage it supplies is less than what the hardware requires.) Or your power supply is wired incorrectly into the peripherals (modern power supplies have four or more circuits, and if you overpower one of those circuits, the power supply becomes too small for the wattage required.)
8) Your hard drives are SATA drives, they are past 50% full, and so their reduced speed causes the hardware to fail (a RAID 0 or RAID 6 may help… make sure you're getting at least 200 MB/s)
9) You are using PP 1.5. The newer QuickTime Codecs & Drivers for certain devices are for more up to date editing systems (Premier Pro CS4) Premier Pro 1.5 was designed for what was available in 2003.
10) You have a worm or virus that keeps returning to your system. USB drives are usually the ones that make this happen.
11) The processors installed came from a bad batch (happens more often than what people think... from what you explain in your symptoms, I think this is the most likely cause of your ills.)

Hope this helps


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Paul Thurston
Producer
Chile