well what do you have set to primary slave? or in fact do you have the jumpers on the back of the cdrom set to secondary master? why dont you try setting the cd rom to primary slave (if you have nothing set as that already) and set the jumpers on the back of the cdrom to primary slave. you say that the cd rom is set to secondary master, well have a look at the jumpers because even if the jumpers are loose that can cause it not to work.
God made adam and eve not adam and steve!!!!!!