I have a HP dc5750 microtower computer with a TSST TS-H653N optical drive which mysteriously quit reading or writing. Device Manager (Windows XP) says the the device is functioning properly using Microsoft driver version 5.1.2535.0 dated 7/1/2001. Yet, when a disc is inserted it will spin and flash the light for about a minute but not recognize the disc. What is going on? It was working fine just last week.