i located the problem the service called "power" is the problem if it s running the cdrom drive doesn t work if the service is disabled the sound is unavailible so i have the choice between cdrom drive or sound -.-
yes i tried the new and old firmware both don t work and the dell support can t help me edit: my girlfriend has almoste the same laptop but another dvd drive ( TSSTcorp DVD+-RW TS-H653A) and windows 7 rc works fine so the problem can online be the blu ray drive optiarc bc-5600s
i installed windows 7 with this cd drive but when windoes 7 starts i was unable to install software with the cd drive because the problem with freezing occured it s the official rc build 7100 it s a clean install (x64) and the drive worked in vista , the win 7 beta and win7 rc safe mode...
/sign same problem and no solution i tried two solutions - both don t worked one solution was to delete the upper and lower filter in the registry don t worked the other was to ensure the ahci mode of the drive in bios and registry don t worked and i found no solution in the forums need...