I have an IBM Netvista where I am attempting to switch out one of my old DVD drives and replace it with a new DVD drive, this one with DL writing ability but when I do, I get the dreaded blue screen which stops windows 2000pro from loading. All drivers are current, norton disabled and no apparent device conflicts. I know the new drive is fine because if I install it separately it loads and works fine. But everytime I put it on the dual IDE ribbon along with the 1st drive, I get the blue screen and the error IRQ not less or equal. Any ideas?