Hl-dt-st dvdram gsa-t50n

Hi, I would like to ask you for help. I have notebook FujitsuSiemens Amilo Pa 3553 (Windows Vista HP) and dvd drive ‘HL-DT-ST DVDRAM GSA-T50N’ in. After some time I could not see the icon of disc drive in ‘MY COMPUTER’. When I checked system manager with equipment of PC, there was a smal exclamation mark in yellow triangle. So I tried to update driver but It wrote the driver is actual. When I double-clicked on the disc drive here there is written: This hardware can’t be started up because the configure informations (saved in registry) are broken or incomplete. (code 19).

Could you help me please?