Lg gcc-4120B CDRW/DVD

Can any one help me?
My pc runs windows xp, recently i lost the above hardware, I have tried to reload the driver but my system tells me that the driver is either corrupt or missing (code39).
When I look at the devices in my settings the cd is not there but it is recognised by the pc at start up options,
I have put the original cd drive back in and get the same message hen I try to add the hardware

Things to try,
Try booting from a bootable CDrom (you will need to alter bios settings to achieve this)with the drive if it works then its a problem with windows if it doesn’t then there’s a hardware problem. Let us know what happens and we can go from there…