I know I am sure this has been covered but but but
The CD/DVD drive activity light is constantly flashing. Sometimes the drawer will not open, then it will and snap shut. Getting a disk in and the drive sends insert disk message countless times and then reads it -sometimes.
Is this a dying drive/corrupt driver/Bios done something daft Any ideas please.
Make sure all your IDE leads are correctly connected and are fully home. I have seen this happen when a cable was inadvertantly connected the wrong way round (ie pin 1 at the wrong end). Not all are keyed.