Found some issues with PHP, changed some settings. Not sure if it's related to this troublesome problem, but it can't hurt to fix (some temporary files were not being deleted properly, which was causing a large buildup of files in a particular directory).

-Wayne

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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman
• 101 Projects for Your MINI Cooper • 101 Projects for Your Porsche 996 / 997