Try going to safe mode then to device manager and see if your new CD-Rom is the only one there.
If it is not remove any others that are not installed.
While your there click your CD-Rom's properties and see if DMA is enabled and also check to make sure that has the proper drive letter.
If it is not remove any others that are not installed.
While your there click your CD-Rom's properties and see if DMA is enabled and also check to make sure that has the proper drive letter.