I am trying to "resurrect" an older Dell computer for use by the original owner’s grandmother. It is a Dell Dimension L566cx; Service Tag 3Y05501. The original owner upgraded and removed the CD burner, modem and memory Dimms from this computer to use in his new one. I have installed a 128 mb Dimm, an Intel modem and a Creative CD 1220E reader. Every thing works fine except the secondary IDE controller. Each time I boot, the device manager shows a yellow exclamation point for the secondary IDE controller and it does not recognize the CD drive which is installed on the secondary channel. The drivers shown for the secondary controller are: C:\Windows\System\IOSUBSYS\ESDL_506.pdr and C:\Windows\System\VMM32.VXD (IOS.vxd) File Version 4.90.300. These are the same as shown for the primary controller. If I select UPDATE DRIVER and then switch from Automatic Search … to Specify location … and click Next and then change from Search … to Display a List … it shows: Secondary IDE Controller (dual fifo) Version 2.30.0007 (6-8-2000). When I click Next I get a Warning message that says: "Windows detects that your current driver may be a closer match for your hardware device than the driver you have selected. Are you sure you want to use the driver you selected." If I click YES and install the driver the system immediately removes the exclamation point and recognizes the CD drive and works fine until I reboot, however the drivers shown in the driver file details are the same as shown above for both the primary and secondary channels. When I reboot the same process must be repeated. I need advice to fix this problem.